Release Note on E2864 Version 3.01   June 7, 1999
1.Solve bugs:
  .V.23:
   V.23 backward channel can't transmit data.
  .None Error control mode:
   ."TxD" Led indicator is not lighted when transmitting data.
  .Fax:
   .Improve the compatibility with Fax machine.
   .The modem can't be quickly aborted after issuing "ATD" command.
   .Fax class 1:
    If time out happened with "AT+FRH=3" command, the modem can't accept any
    AT command.
   .The modem should respond "OK" instead of "No Carrier", after issuing "ATH"
    command.
  .Leased Line:
   .Can't connect when the settings is "&l1&n0".
   ."at&f","atz" command can't work if the modem at handshaking state.
  .O288S:
   .When the setting is "&n34", modem can't connect.
  .V.34 mode:
   .Can't connect via dial up when country code equals to 219.
  .ATO1:
   ."ATO1" command will cause modem can't trafer data when connects at
    V.32b or Z192 mode .

 

                                                   ZyXEL Communications Corp.
                                                      edited by Manfred Recla
                                                               March 06, 1999



   ***********************************************************************
   *                                                                     *
   *             Release Note on ZyXEL Elite 2864 MODEM                  *
   *                                                                     *
   *          PUBLIC RELEASE     Version v3.00 (03/03/1999)              *
   *          =============================================              *
   *                                                                     *
   *             now including the ITU V.90 modem protocol               *
   *                                                                     *
   ***********************************************************************




 IMPORTANT INFORMATION
=========================
  Due to the rearrangement of the EEPROM/NVRAM usage, the Elite 2864 must
  perform a hardware reset after the first time upgrading to v3.00 from the
  previous version:

  While powering on the modem, please push the "D/V" button for about 5 sec.,
  then release that button. Now the modem will start with the typical modem
  handshake sounds - it is in the selftest mode and will generate an ASCII
  pattern which is sent with 115200 bps to serial port. In this mode all the
  S-registers will be initialized, all the stored phone numbers and passwords
  will be erased.  You then can power off and power on normally again.

 1.) Release filenames:
 ======================
     1.1  "E2864.300"     ...... binary firmware for Elite 2864 modem
     1.2  "E___300.TXT "  ...... Firmware v3.00 release notes (this file)
     1.3  "MDMZES90.INF"  ...... INF driver file for Windows9x/NT4/2000
     1.4  "SWVZES90.INF"  ...... serial voice driver for Windows9x/NT4/2000


 2.) General information on the Version v3.00 release
 ====================================================
      The modem can now be upgraded to the ITU V.90 analog modem protocol.

 2.1) Upgrade procedure:
      Use any terminal program and start the firmware upgrade with the
      command "ATUPX", as described in the Elite 2864 User's Manual.
      A modem's hardware upgrade is not necessary.




 3.) V.90 Debugging and Diagnostics
 ==================================
  This firmware version v3.00 may have connection problems with existing
  various V.90 terminal servers (used on Internet Service Provider's sides).
  Although the ITU-T has officially released the V.90 Recommendation in
  September 1998, there might still exist some incompatibilities between
  the ZyXEL Elite 2864 and Omni 288s modems.

  If you want to report incompatibilities or problems concerning the V.90
  modem connections, please use the following standard method to log some
  useful debugging information for ZyXEL R&D and send your reports and
  feedback to ZyXEL technical support by eMail to support@zyxel.com.tw


  *** enable the "capture to ASCII logfile" in your terminal program ***

(1) at&f            (load factory default settings)
(2) ati9            (Plug&Play string will tell us the modem's version)
(3) ati1            (display modem version)
(4) at#h            (display country code)
(5) ats52=96        (enable complete CONNECT response string)
(6) ats59=2         (enable modem handshake negotiation and state sequence)
(7) ats94.3=1       (for phase 2 probing information)
    ats69.3=1       (in case the remote V.90 server is a Livingston PM3 !)
(8) atd.........    (Dial the phone number)

    B01 B22 B02 B03
    .......         (reports modem handshake negotiation and state sequence)
    .......

(9) CONNECT .....  (reports connect message)
(10) type "+++"     (enter into command mode)
(11) ati2           (display the modem link status report)
(12) ati12          (display modem physical layer status)
(13) ati14          (display modem capability)
(14) ati15          (display modem power management)
(15) atr11800       (display phase 2 probing information)
(16) at#e1          (display line condition, measured each second)
     .....
     .....          capture line condition probes for some few minutes
     .....          (or until remote site disconnects)
     .....
(17) at#e0          (stop the display of line condition again)
(19) ati2           (display the modem link status report again)
(19) ALT-H or ath0
     or DTR drop    (Disconnect)

*** END of capturing the debugging information ***

This debugging information is very helpful for ZyXEL's R&D firmware
engineers and developers to solve a specific problem.


additional background information for the debugging
----------------------------------------------------
(1) CONNECT 3200L/38666/28800/ARQ/V.90/V42b
    in this extended/debugging CONNECT message (is S52=96)
    the "3200L" or "3200H" means the baud (symbol) rate of V.34 upstream.
       "L" means "low carrier frequency"
       "H" means "high carrier frequency"

    V.34 protocol:
    baud rate  Carrier(L)  Carrier(H)
     2400      1600 (Hz)   1800 (Hz)
     2743      1646 (Hz)   1829 (Hz)
     2800      1680 (Hz)   1867 (Hz)
     3000      1800 (Hz)   2000 (Hz)
     3200      1829 (Hz)   1920 (Hz)
     3429      1959 (Hz)   1959 (Hz)

(2) ATi12
    Rx Carrier = 0 Hz
    ---> There is no carrier for V.90 downstream.
         Because the V.90 technology is not a kind
         of modulation tech. (V.32, V.34), it is a
         coding tech.

    Rx baud rate = 8000
    ---> baud rate of V.90 downstream, same as the
         sampling rate of ISDN, E1 or T1 network.

(3) connected via PABX.
    ----> Please don't connect the analog modems Elite 2864 and Omni 288S to
          an analog PABX with (A/D+D/A) converter. Otherwise, the V.90
          connection is impossible. Usually, the connection performance is
          much worse via PABX.


    Case 1:
         Digital          Analog
     ISP ------- C.O.(D/A)------ E2864 (O288S)


    Case 2:
         Digital         Digital                  Analog
     ISP ------- C.O.----------- Digital PABX(D/A)------- E2864 (O288S)


    Case 3:
         Digital          Analog                      Analog
     ISP ------- C.O.(D/A)------ Analog PABX (A/D+D/A)------ E2864 (O288S)

   ----> Case 1 and Case 2: V.90 connection is possible. And usually,
         Case 2's performance is worse than Case 1.
   ----> Case 3: V.90 connection is impossible. (V.34 only)




 3.1) command ATi12 => Modems Physical Layer Status Report
 ---------------------------------------------------------
      Some items in ATI12 report list are changed to display the information
      about the connection path. They are shown as in following example:

   ZyXEL MODEMS PHYSICAL LAYER STATUS REPORT

   Modulation mode   = V.90
   Tx Carrier        =  1829 Hz         Rx Carrier             =     0 Hz
   Tx Baud Rate      =  3200 Baud       Rx Baud Rate           =  8000 Baud
   Tx Bit Rate       = 28800 bps        Rx Bit Rate            = 45333 bps
   Tx Power          = -23.0 dBm        Rx Level               = -20.4 dBm
   Phase Jitter      =   x.x degree     Frequency Offset       =   x.x Hz
   SNR               =  50.5 dB         Round Trip Delay       =     7 ms
   Near End Echo     = -xx.x dB         Far End Echo           = -xx.x dB
   Nonlinear Encoder =    on            DPCM PCM Coding        =     A Law
   Tx Shaping        =   exp            APCM Codec Type        =     A Law
   Trellis Encoder   =    16 state      Digital PAD Loss       =     0 dB
   Tx Filter Index   =     1            TRN1d RMS Value        =  2006 (Q13)
   Tx Precoder Coefficients        = 00C1  0050  FF20  FFB2  00C0  0016
   Data Frame Intervals RBS status = I0:N  I1:N  I2:N  I3:N  I4:N  I5:N


 +=========================================================+================+
 | Items                |         Meaning                  |     Value      |
 +----------------------+----------------------------------+----------------+
 | DPCM PCM Coding      | PCM coding in use by Digital     | A-law, m-law  |
 |                      | PCM (server) modem.              |                |
 +----------------------+----------------------------------+----------------+
 | APCM Codec Type      | Codec type connected to Analog   | A-law, m-law  |
 |                      | PCM(client) modem.               |                |
 +----------------------+----------------------------------+----------------+
 | Digital PAD Loss     | The amount of digital PAD loss   |   0 ~ 12 dB    |
 |                      | in digital trunk.                |                |
 +----------------------+----------------------------------+----------------+
 | TRN1d RMS Value      | Another representation method    |  Hex. value    |
 |                      | of digital PAD loss.             |                |
 +----------------------+----------------------------------+----------------+
 | Data Frame Interval  | Robbed-Bit-Signalling indication |  Y:YES, N:NO   |
 | RBS                  | in each frame interval.          |                |
 +======================+==================================+================+



 3.2) command ATi14 => V.90 Capability Report
 --------------------------------------------
   3.2.1) report local and remote modem's V.90 capability.
   3.2.2) report probing result.
   They are shown as in following example:

              ZyXEL MODEMS V.90 CAPABILITY REPORT

              Local  Modem V.90 Capability  =  APCM
              Local  Modem PSTN Connection  =  Analogue
              Remote Modem V.90 Capability  =  DPCM
              Remote Modem PSTN Connection  =  Digital
              Probing Report of APCM modem  =  V.90



 3.3) ATI15 = Power Management Report
 ------------------------------------
   3.3.1) Report power management for V.90 mode.
   They are shown as in following example:

              ZyXEL MODEMS V.90 POWER MANAGEMENT REPORT

              DPCM nominal tx power for phase 2  : -10   dBm
              DPCM actual  tx power for phase 2  : -16   dBm
              Maximum DPCM tx power for phase 3  : -12.0 dBm
              Maximum DPCM tx power measured at  :  Codec
              Digital PAD loss                   :   0   dB
              IMD value measured at phase 2      :  0000 (Hex)
              DPCM tx power reduction for IMD    :   0.0 dB
              APCM receive power at Phase 2      : -23   dBm
              APCM receive power at TRN1d        : -21   dBm
              APCM receive power at Data State   : -20.4 dBm
              ----------------------------------------------
              DPCM Terminal tx power             : -12.0 dBm
              DPCM Codec tx power                : -12.0 dBm


 4.) firmware modifications for updated Windows9x/NT4/2000 "INF" driver
 =========================================================================
 4.1) the updated INF driver file for Windows9x/WindowsNT 4.0 and
      Windows 2000 Beta 3 is called:
      "MDMZES90.INF" which will be available on ZyXEL's FTP servers too.
 4.2) ATX8 command = multiple lines connect response strings:
      the single line (ATX0 to ATX7) CONNECT message will be split and
      reported in several lines now as in following example:

      example:                            meaning:
      <cr><lf>CARRIER 45333<cr><lf>       DCE rate (modem's link speed)
      <cr><lf>PROTOCOL: V42<cr><lf>       error correction protocol in use
      <cr><lf>COMPRESSION: V42b<cr><lf>   data compression protocol in use
      <cr><lf>CONNECT 460800<cr><lf>      DTE rate (serial line to computer)

 4.3) modified ATI9 response
      Microsoft's Plug&Play ID string
      (.$ZYX21E9\0000A5DC\MODEM\\  ZyXEL Elite 2864  V 3.00    FA)
      This is used to identify the new firmware in the new "MDMZES90.INF"
      INF driver file for Windows9x/NT4/2000.
      The product code (Elite 2864) is coded into Plug&Play ID: "ZYX21.."
      The country code (AT#H)       is coded into Plug&Play ID: "ZYX..E9",
      where the low byte is HEX value of the country code. In this example
      it is 0xE9 which is decimal 233 -> Austria

 5.) V.90 Result Codes
 =====================
     for the V.90 modem connection (DCE) rates there were introduced
     new CONNECT response strings and values as listed:
     verbose (ATV1)    numeric (ATV0)
      CONNECT 28000       121
      CONNECT 29333       120
      CONNECT 30666       119
      CONNECT 32000       118
      CONNECT 33333       117
      CONNECT 34666       116
      CONNECT 36000       115
      CONNECT 37333       114
      CONNECT 38666       113
      CONNECT 40000       112
      CONNECT 41333       111
      CONNECT 42666       110
      CONNECT 44000       109
      CONNECT 45333       108
      CONNECT 46666       107
      CONNECT 48000       106
      CONNECT 49333       105
      CONNECT 50666       104
      CONNECT 52000       103
      CONNECT 53333       102
      CONNECT 54666       101
      CONNECT 56000       100


 6.) new AT-commands for V.90 modem link speed (DCE-rate)
 =========================================================
  AT-command     S19 register value     V.90 rate
    AT&n99            99                 28000
    AT&n98            98                 29333
    AT&n97            97                 30666
    AT&n96            96                 32000
    AT&n95            95                 33333
    AT&n94            94                 34666
    AT&n93            93                 36000
    AT&n92            92                 37333
    AT&n91            91                 38666
    AT&n90            90                 40000
    AT&n89            89                 41333
    AT&n88            88                 42666
    AT&n87            87                 44000
    AT&n86            86                 45333
    AT&n85            85                 46666
    AT&n84            84                 48000
    AT&n83            83                 49333
    AT&n82            82                 50666
    AT&n81            81                 52000
    AT&n80            80                 53333
    AT&n79            79                 54666
    AT&n78            78                 56000



8.) The Known Bug List
======================
    Compatibility problem with Lucent/Livingston's PortMaster-3 (PM3) with
    their "ComOS 3.8.2" released firmware. To connect to the PM3, please
    set the S-register 69 bit 3 (ats69.3=1) !!
    If you face problems with it, please report us your experiances to
    support@zyxel.com.tw


9.) Compatibility Server
========================
    ZyXEL's V.90 client mode was sucessfully tested agains following servers
    Rockwell Server, 3COM/US-Robotics "Courier-I" ISDN TA (S/T, A-law),
    BayNetwork Server, Ascend Max-4xxx and TNT Servers.


10.) HISTORY of ZyXEL's V.90 code development
=============================================


issues in v3.00
---------------
   + Add "ats67.6=1" command to ignore the Phase 2 probing result and
     always run V.90 mode.
   + Add "ats69.3=1" command to indicate that the remote V.90 server is the
     Livingston PM3.

v3.00 fixes these bugs:
-----------------------
   1.  Compatibility problem with WinFax Pro 8.0 and higher versions.
   2.  The modem can not send file under the condition if DTE is higher than
       115200 and DCE link speed is lower than 9600 in error control mode.
   3.  Fax 9600 link speed can not work.
   4.  The modem can not immediately abort in phase A and B in the fax mode.
   5.  In fax class 1, 2, or 2.0 the modem can not response "NO CARRIER".
   6.  The modem will not stop to send fax message with WinFax Pro 9.0.
   7.  The disconnect message is disappeared when you issue "at&f" command
       after excuting "at+fclass=6".
   8.  When the DTE speed is higher than 115200, the modem can not transmit
       file in "&K0&N0" mode.
   9.  Resolve the link layer reset problem under low connection speed.
  10.  If you set modem faxalone receiving, then the EDR function will not
       be checked.
  11.  The modem will handshaking with busy tone.
  12.  V.13 HDX mode can not work.
  13.  If the modem connects with V.22bis (2400bps) in non error control
       mode, it will always response garbage at the beginning of entering
       data state.


fixed issues in v2.00n
----------------------
   1. The modem will not response retrain tone in the data state.
   2. Fixed the compatibility problem with Livingston's PM3 server
      with ComOS v3.8.2 (please set ats69.3=1)
   3. The V.90 probing threshold has been changed to -17.5dB.
   4. When the DTE speed is bigger than 115200 the modem can not transmit
      files in &K0&N0 mode.
   5. Added ats67.6=1 to ignore the V.90 Phase 2 probing result and to
      run always in V.90 mode.


fixed issues in v2.00m
----------------------
   1. Adjusted the PTT table.
   2. If you set modem standalone fax receiving, then the EDR function will
       not be checked.


fixed issues in v2.00l
----------------------
   1. The modem will not response "NO DIALTONE" and "BUSY" messages when you
      set "ATX8" command.
   2. The modem will not response "NO CARRIER" if you set "AT&F" following
      the "AT+FCLASS=6" (ZyXEL's proprietary ZFAX) command.
   3. Solved the link layer reset problem under low connection speed.


fixed issues in v2.00k
----------------------
   1. Setting: AT&N99, connect speed: V.34 16800
               AT&N98, connect speed: V.34 19200
               AT&N97, connect speed: V.34 21600
               AT&N96, connect speed: V.34 24000
               All of above should be "V.34 28800".
   2. ATI12 and ATI15 Rx power level should be showed "xxxx" in command
      state.


fixed issues in v2.00j
----------------------
   1. in order to adapte the analog V.90 modem code into Elite 2864I
      we created this version now.


fixed issues in v2.00i
----------------------
   1. Re-enabled the proprietary "ZyX-19k2" data mode of Elite 2864.
   2. Fixed the compatibility problem with PM3 server.
   3. Improved the data pump codes.
   4. Fixed the Phase 1 compatibility problem with Bay Network Server.
   5. New ATI9 (Microsoft's Plug&Play ID) display format.


fixed issues in v2.00h
----------------------
   1. Fixed the V.34 mode FRN problem.


fixed issues in v2.00g
----------------------
   1. Added ats67.6=1 to ignore the V.90 Phase 2 probing result and
      to run always V.90 mode.
   2. Added "actual Phase 2 Rx level" in ATI15 response.
   3. Improved the data pump codes.


fixed issues in v2.00f
----------------------
   1. Fixed the compatibility problem with 3COM/US-Robotics Courier-I ISDN
      TA+modem (S/T-bus interface with "A-law" PCM coding).
   2. After V.90 connection, Omni 288s issues ATZ will cause dead-down.
   3. Fixed the callback function bug in V.34 mode.
   4. After V.90 connection, Omni 288s D/V key hang up problem.
   5. Fixed D/V key hang up problem during handshaking.
   6. Fixed ATS$ and ATS? response error.
   7. Modification of ATX8 and ATI9.
   8. Added ATI12, 14, 15 off-line display function.
   9. Fixed (ATX8 to ATXn, n=0~7) switch problem.
  10. Phase 1-2 negotiation problem with an unknown serevr.
  11. Improved the data pump codes.


fixed issues in v2.00e
----------------------
   1. Using audio capabilities will reset modem.
   2. Voice to fax/data mode switch problem.
   3. Compatibility problem with WinFax Fax Class 2.


fixed issues in v2.00d
----------------------
   1. Re-enabled the proprietary "ZyX-16k8" data mode.
   2. Merged the features of firmware version v1.21 !
   3. Some modifications of ATX8 and ATI9 for Windows9x/NT4/2000 V.90
      INF driver files.
   4. Fixed the ATO1 bug.
   5. Improved the data pump codes.


fixed issues in v2.00c
----------------------
   1. Compatibility with Rockwell's V.90 server.
   2. New ATX8 and ATI9 for Windows9x/NT4/2000 V.90 INF driver files.
   3. Improved the data pump codes.


fixed issues in v2.00b
----------------------
   1. Corrected an editorial error of "V.90 AT commands" in release note
      for v2.00a.
   2. Improved the data pump codes.




-----------------------------------------------------------------------------





         Release Note on Elite 2864, Elite 2864L and Omni 288S
         Version 1.21                            June 28, 1998
         =====================================================



 1. Fixed modem bugs:
 --------------------
    1) AT command and response:
       .When using numerical result code (ATV0) and you issue the "AT+FMFR?"
        command, a <cr> is missed out. What we see is 'ZyXEL0<cr>', but it
        should be "ZyXEL<cr>0<cr>".
       .When you enter "AT&F&L1&WZ" in leased line mode during handshaking,
        modem will not do auto handshake any more. And modem will response
        as "keyboard abort" if you key in any command.
       .The error control level and data compression protocol showed in the
        connect message should be "NONE" while the setting of remote ZyXEL
        modem is "&M1" or "&M3".
       .Modem will response error while "ATZ4S0M0N0=1" is entered.
       .When value 'n' in the "ATSr=n" command is greater than 255. Modem
        will response error.
       .Modem will not response error either "ATMOLO" or "ATO26" is entered
       .Modem will not response error while "AT#REV=?" is entered.
       .Modem will not response error while "AT#CLS=?" is entered.
        (WinFax 8.0 compatibility)
       .The answering modem has compatibility problems with some PABX while
        "ATS0=1" command is entered.
       .Modem will not response "No Answer" when "ATDxx@" command is entered
        and status register S7 timer happens time out.
       .When the command "S38.0=1&WZ" is entered,we can not use the keyboard
        to abort the cyclic dialing.
       .Some characters will be lost when DTE uses 460800 bps speed to send
        command to modem.
    2) V.25bis command set:
       .The acknowledge of the first command after power on will be lost.
       .Fail to select mark idle in V.25bis HDLC by using bit 1 of status
        register S41.
    3) Physical layer problems:
       .Fail to detect ring signal in France.
       .When the local modem with the "&N0&B0" setting and 2400 bps DTE speed
        calls to a remote modem with the setting "&N15". The local modem will
        reset.
       .Modem will not initate a FRN procedure any more in v.32 mode when FRN
        ever happened once.
       .The "*Q3" function works improperly in not V.34 mode.
       .Modem with quality action "*Q1" will not initiate a retrain in
        multi-auto mode when line quality is degraded.
       .Fail to initiate a retrain with "ATO1" command in ZyXEL cellular
        modem.
       .Improve the stability of synchronous mode both in external and slave
        clock modes.
       .Modem will hang in leased line mode when you plug in and unplug the
        line repeatly.
       .Modems can not connect with each other using "&N73" setting.
    4) V.34 related problems:
       .The V.8 compability problem with Motorola modems is resolved.
       .Compability problems with NEC or Dynalink 56k modem when ZyXEL is in
        answer site.
       .Modem will hang up or do continuous retrains when connects to a
        terminal server with Rockwell K56.flex.
       .V.8 compability problem with V.90 server site modems.
    5) Link Layer problems:
       .Can not send "null data" to remote modem under V42 connection.
       .Some data will be lost during file transfer using XON/XOFF software
        flow control.
       .Fail to do data transfer with N71 asynchronous data format.
    6) EDR (Extended Distinctive Ring) problems
       .There must be no "RING" report to DTE when ring signal is coming.
       .There is one more "RING" report to DTE
    7) Security function:
       .The answering modem will not initiate a V.34 remote cleardown
        procedure during security callback function, *G4 or *G5. Such that
        the calling modem will not hang up immediately while using the
        callback function and the answering modem can not make a call
        successfully.
    8) Diagnostic feature:
       .Fail to do "RLB" or "ALB" tests according to the ITU-T signals 140
        and 141 on EIA-232D interface while bit 3 of status register s41 is
        set.
       .The "Chars Received" displayed in "ATI2" command should not always be
        '0'.

 2. Fixed fax bugs:
 ------------------
   .The connect speed is incorrect while "AT+FDCC=1,2" or "AT+FDCC=1,4"
    command is entered.
   .In fax mode the modem should not report "CONNECT FAX" to DTE if s38.3=1,
    because this will cause some software to assume a data call.
   .In standalone fax mode,the incoming call will not detect "busy" during
    FAX printing from DRAM to printer.
   .In fax mode, modem should not response "NO CARRIER" to DTE even the call
    is droped, fax is sent or received successfully.
   .The double quote ("string") is missed out in command response for +FTSI,
    +FCSI commands.
   .Sometimes the 'V32b' and 'V34' LEDs are still turned on during the fax
    transfer.
   .While using the Hylafax software to drive the modem to transmit a fax,
    modem will send the first page three times and then disconnect the call
    abnormally.

 3. Fixed voice mode bugs:
 -------------------------
    The result code of detecting ringback signal in voice mode should be
    "<DLE>r" instead of "RINGING".



-----------------------------------------------------------------------------




                                                             April 06, 1997

        Release Note on Elite 2864(L) and Omni 288S,  Version 1.20
        ==========================================================
                          not publically released




-----------------------------------------------------------------------------



                                                             October 18, 1997

        Release Note on Elite 2864(L) and Omni 288S,  Version 1.19
        ==========================================================



Fixed Modem bugs:
-----------------
 1. The "Callback Security *G2" on Elite 2864 series is not compatible with
    U1496 series.
 2. The report of Rx level is not correct.
 3. Modem will not repeat generation of answer tone in leased line v.32 mode
    when s57.1=1 is set.
 4. The Connect message format is not correct (CR,LF are missed) when
    "+FAA=1", "+FClass=2.0" is entered.
 5. Increase the stability of data transfer in sync mode.
 6. ZyXEL modem can't connect in V.34 mode with Rockwell modems (with
    chipset for K56flex protocol) if ZyXEL is calling site.
 7. Special problems for Russia only:
   - The default Caller ID settings are not correct.
   - The dial tone detection sometimes fail when "ATDT9W8W10...." is entered.
   - Ring volume can not be adjusted by ATNn.
   - Modem will get false Ring if you dial digit from attached telephone set.
   - Busy is not detected when call is originated in &N17 or any other non
     multi-auto mode.

New Feature:
------------
 1. The Caller ID settings can be saved in NVRAM if "&Wn" is entered.
   - press D/V key then power on to do hardware reset is needed



-----------------------------------------------------------------------------



                                                                 May 26, 1997

        Release Note on Elite 2864(L) and Omni 288S,  Version 1.18
        ==========================================================

Fixed Modem bugs:
-----------------
 1. When "ATU" command is entered, the modem will go to kernel.
 2. Double entry for AT$ online quick reference English help manual.
 3. The modem will fail handshaking in V.22bis if &N0 is set.
 4. The modem will stop auto handshaking in leased line mode after 2-4 days,
    but it will start handshaking again when D/V key is pressed.
 5. The modem will not connect with Supra 288 if &n73 is set.
 6. The LL led should be on if "&l1" or "&l2" is entered in E2864L model.
 7. Sometimes the modem doesn't send any character to the other side in 4W
    leased line mode, if we pull out and plug in the line in data state
    befor CD is on.
 8. The modem won't do auto handshaking, if reset from profile n "Zn" is
    entered and profile n has leased line setting.
 9. The modem will auto answer if s0=128-255.
10. The modem will only connect into 4800 bps with USR Sportster, if FRN is
    initiated in the first 10 seconds.
11. The modem will neither reset to profile 0 nor start auto dialing on DTR
    raise, although "&M1&D1*D1S48.4=1&W2Z2" is set.

Fixed Fax bugs:
---------------
 1. When "+FZF=1" is set, the modem will disconnect the data calls after a
    fax call if no printer is connected.



-----------------------------------------------------------------------------



        Release Note on Elite 2864(L) and Omni 288S,  Version 1.17
        ==========================================================
              has not been officially released in Europe !


-----------------------------------------------------------------------------



                                                                Feb. 17, 1997


        Release Note on Elite 2864(L) and Omni 288S,  Version 1.16
        ==========================================================

Fixed Modem bugs:
-----------------
 1.The answer site will hang if "&K3Q2", or,"&K3Q1" is set and chars are
   entered on both terminals after connect. The same condition also happens
   when answer site works in host mode.
 2.Sometimes the files will stop transfering when the modem works in MNP
   protocol.
 3.Sometimes the modem with muti-auto setting will connect into fax with
   Motorola V.32 mode.
 4.The modem does not response "NO CARRIER" when error control hanshaking
   fails.
 5.In 3-wire (Tx,Rx,GND) DTE to DCE configuration, the file receiving will
   stop in leased line, if you pull out and plug in continuously the 3-wire
   connector.

Fixed version bugs of v1.15:
----------------------------
 1.Sometimes the redial a busy number should be stopped when users exit the
   terminal program.
 2.The modem with DTR off can't receive fax to DRAM if "+FZF=3" or "+FZF=5".




-----------------------------------------------------------------------------



                                                                Jan. 20, 1997

        Release Note on Elite 2864(L) and Omni 288S,  Version 1.15
        ==========================================================



 1. Fixed modem bugs:
 --------------------
    1) Pulse dial:
       .There exist false ring from speaker if digit "0","9","8" is press
        when pulse dial is enable.
    2) AT command and response:
       .The ECM (+FRY?) doesn't support, it should response "error".
       .When "ATRU" command is entered, the modem will go to kernel.
       .When "ATS18=32 (230400 bps) is issued, the modem can't accept any
        command from DTE
       .The redial should be stopped when users exit the terminal program.
    3) Physical layer compatibility:
       .The compability for E2864 with GVC 33600 modem is about 50 percent
    4) Physical layer compatibility:
       .Modem handshaking will fail if S/N ratio is less than 19 db.The new
        firmware will connect successfully if S/N ratio is greater than 15 db.
    5) Link Layer compatibility:
       .Sometimes the modem will connect to none error control with USR
       .Sometimes the modem will connect to none error control with Rockwell
    6) Security Function
       .The call site set "&n14&k3" and answer site set "*g3",there is no
        password prompt and the answer site hang.
    7) V.25bis in AS400
       .The "&R1" function fail,when modem work with AS/400.

 2. Fixed fax bugs:
 ------------------
    .  If paper jammed or no paper happened,the modem can not return to idle
       mode during fax printing via parallel.

 3. Added new feature:
 ---------------------
    .  Disable Windows95 Plug&Play feature, if S58.3=1



-----------------------------------------------------------------------------



                                                            November 8, 1996

      Release Note on Elite 2864(L) and Omni 288S,  Version 1.14
     ============================================================


 1. Fixed modem bugs:
 --------------------
    1) Special dialing feature:
       .Modem does not finish dialing of numbers specified after P modifier
        and hangs for a time specified in S7 register. For example when
        "ATDT9WP8W10-886-3-578-7045" is entered, modem will report
        "NO CARRIER".
       .When bit 4 or register S35 is set, the modem will not dial the
        default phone number while the user press the DATA/VOICE switch in
        synchronous operation mode.
    2) AT command and response:
       .When "AT&FX0" command is entered, the modem will report connect
        message as "CONNECT 38400" instead of "CONNECT" only.
       .When "ATM2" command is entered, modem will turn speaker off when
        retrain happened in ZyCell mode.
       .The modem does not prompt the hint message and erase the flash
        memory directly while the user keyin the "ATUPX" command with "ATQ1"
        disabling sending result code.
       .When the "AT&N65" command is entered, the modem will report some
        additional blanks in the "Last Speed/Protocol" field of "ATI2"
        command.
       .When "AT&M2X0" command is entered, the modem will response garbage
        and one more CR after connect message "CONNECT ".
       .When direct mode "AT&M2" command is entered,the modem will not send
        file correctly with 8E1 in data state.
       .When "LF" is entered after "AT<CR>" command in escape state, modem
        does not response "OK"
    3) Security function:
       .When the call and anwer modems are entered with "AT&K0" and
        "ATS0=1*G5" respectively, the call modem can not enter the call
        back number after the connection.
       .When two Elite modems entered with the "AT&F&T4*F1S2=61" and "ATS0=1
        &T4*F1*G5" in call and answer mode respectively, the call modem can
        not read the remote configuration successfully.
       .When the level 2 security function is enabled, modem will request the
        user to key in the password with the "Password" prompt instead of
        "PassWord". Note that the "PassWord" prompt is used in ZyXEL U-series
        modem.
    4) Physical layer stability:
       .ZyCell protcol can not accept any data from the remote site after
        the connect message.
       .When the "ATX6&N16&T1" is entered, modem will report "NO CARRIER" and
        modem will turn on CD when issue the "AT" command after the report.
       .Modem can not connect with Supra modem with V.34 mode under some
        worst line condition.
       .Modem will get a lower speed than the inital handshaking when the
        retrain procedues happened oftenly in data state.
    5) Link Layer compatibility:
       .There is a compatbility problem with "Octocom" modem. When ZyXEL
        calls it with V.22bis/MNP4 mode, ZyXEL modem can not accept any
        data from it after the connect meessage be displayed.
       .In Italy, ZyXEL modem can only connect Digicom modem with error
        control mode under 26400 bps link speed. For 28800 bps link speed,
        the connection is non error control mode.
       .There are some characters will be missed in file transmission when
        software flow control XON/XOFF (&H4) is enabled.
    6) V.25bis command set:
       .Modem will not support use profile 2 to make a connection with AS/400.
    7) Error control procedure:
       .Improve the efficent in echo delay testing and file transfer with
        XMODEM protcol.
    8) Diagnostic feature:
       When the call and answer modems are entered with "AT&F&T4&K3" and
       "AT&F&D0S0=1&T4" respectively, the TST LED of calling modem will turns
       on after the connection.

 2. Fixed fax bugs:
 ------------------
    1) If user want to print a fax, user issue "AT+FZP<CR>" and there
       should be <1F><OK> response from modem. But this does not happen
       and will cause problems in writing the application for this function.
    2) Cannot receive a fax correctly after a V.34 data connection:
    3) The modem will report incorrect result code to ZFAX when there are
       incomfing fax stored in DRAM and ZFAX try to retieve fax from modem.
    4) Setting the modem with AT+FZF=1, 4 or 5 and DTR is off, the modem
       will answer the modem call instead of dropping the modem call.
    5) When modem stayes in DRAM fax reciving mode (clsaa Z, +fzf=2) without
       RS-232 cable, modem can not accept AT command anymore after reciving
       a fax and plug in the RS232 cable.
    6) When modem stayes in class Z service, modem can not make an outgoing
       data call.

 3. Added new feature:
 ---------------------
    User can issue an "ATI12" command to get the physical layer parameters
    choosed in V.34 mode. This information is reliable only in the escape
    state. Since the Near End echo and Far End echo reports are not ready,
    they will be filled with "-xx.x" and will be implemented asap.
    One of the example is as following:

ATI12

   ZyXEL MODEMS PHYSICAL LAYER STATUS REPORT

   Modulation mode   =  V.34
   Tx Carrier        =  1600 Hz         Rx Carrier             =  1800 Hz
   Tx Baud Rate      =  2400 Baud       Rx Baud Rate           =  2400 Baud
   Tx Bit Rate       = 16800 bps        Rx Bit Rate            = 12000 bps
   Tx Power          = -11.0 dBm        Rx Level               = -24.3 dBm
   Phase Jitter      =   0.0 degree     Frequecy Offset        =   0.0 Hz
   SNR               =  24.1 dB         Round Trip Delay       =     5 ms
   Near End Echo     = -xx.x dB         Far End Echo           = -xx.x dB
   Nonlinear Encoder =    on            Nonlinear Decoder      =   off
   Tx Shapping       =   min            Rx Shapping            =   min
   Trellis Encoder   =    64 state      Convolutional Decoder  =    16 state
   Tx Filter Index   =     8            Remote Tx Filter Index =     0
   Tx Precoder Coefficients        =    0     0     0     0     0     0
   Remote Tx Precoder Coefficients =    0     0     0     0     0     0



-----------------------------------------------------------------------------




                                                               August 1, 1996

      Release Note on Elite 2864(L) and Omni 288S,  Version 1.13
     ============================================================


 1. Fixed modem bugs:
 --------------------
    1) Russian CNI feature:
       .Can not detect the CNI message in Russia with E2864L modem:
        After answering the incoming call in Russia, modem will report
        incorrect CNI message as "CALLER'S NUMBER: ?".
       .Incorrect CNI report in Russia:
        After answering the incoming call in Russia, modem will report CNI
        message with an additional "0x00" null character before the actual
        CNI number.
    2) Special dialing feature:
       .Cannot use off to on transition of DTR signal to initiate dialing:
        When the "AT&D1&Z0=0,783942&M3" command is entered, the modem will
        not dial when the DTR raises on condition.
       .Failed to work with reverse dial function:
        When the bit5 of status register S17 is set, the modem will not
        change its role as an answer modem after completing the dialing
        procedure.
       .Incorrect repeat dialing with "A>" command:
        When "A>" command is entered after modem resport "BUSY" in dialing
        state, the modem will not repeat dialing with an redial interval
        controlled by the content of status register S8.
       .Cannot support up to 50 telephone numbers for dial backup:
        When the "AT*B10" command is entered in E2864L model, the modem
        will response "ERROR" instead of "OK".
       .Store phone number incorrectly:
        When the "AT&Z=138abc" command is entered, the modem will store an
        incorrect phone number into the EEPROM.
    3) RS232 interface procedure:
       .Cannot answer incoming call automatically:
        When the "AT&D0S0=1" command is entered and the RS232 cable is
        disconnected, the modem will not automatically answer the incoming
        call.
       .Incorrect CTS delay with the content of status register S26:
        If "AT&R0" command is entered in synchronous mode, the modem does
        not control the CTS delay timing according to the content of S26.
       .Fail to use the "CD on before the connect message is sent" feature
        in *G1 security function:
        If the bit3 of status register S38 is set, the modem does not turn
        on the CD before sending the connect message in security function *G1
    4) Error control with data compression:
       .Cannot connect with MNP4/MNP5 in V.22bis mode:
        When the "AT&N14&K1&T1" command is entered, the connect message
        is "CONNECT 460800/V.22b 2400/None".
       .Cannot connect with USR using MNP4/MNP5 error control mode:
        When the "AT&K1" command is entered, the 2864 calling USR modems
        will get an non-error control connection.
       .Cannot connect with V42/V42b in V.22 mode:
        When the "AT&N15&K4&T1" command is entered, the connect message
        is "CONNECT 460800/V.22 2400/MNP5".
    5) Upload new firmware:
       .Cannot enter AT command after uploading firmware:
        While modem connects with printer and use "ATUPX" command to upload
        another firmware, the modem can not accept "AT" command anymore after
        the uploading procedure.
       .Disconnect the link with "ATUPXX" command:
        When "ATUPXX" command is entered in escape state, the link will be
        dropped.
    6) AT command and response:
       .Incorrect repeating last command when "A>" command is entered:
        When "A>" command is entered after entering "ATH" command in escape
        state, modem will report "OK" response night times.
       .Incorrect product information of OMNI:
        If the "ATI0" command is entered, the OMNI modem will report "2864"
        instead of "288".
       .Incrrorect response of AT command:
        When the "ATS0=300" command is entered, the modem will response "OK"
        instead of "EROOR" and the content of S0 will be set as "255".
       .Incorrect connect message:
        When the DTE speed of terminal equals to 300 bps and the "ATZ4&T1"
        command is entered, the modem will report connect message as
        "CONNECT CONNECT/V.34   9600/V42b/SREJ".
       .Incorrect help message:
        When the "AT*?" command is entered, the modem will display some
        garbage firstly and then the help menu.
       .Display one more illeage line:
        When the "AT+?" command is entered, the modem will show an additional
        "Strike any key when ready" at the end of each page.
       .Incorrect numeric response:
        When user chooses the 9600bps DTE speed and sends "AT&FX4V0" command
        to modem and forces it into the ALB operation mode. The modem will
        report "12" instead of "12<CR>".
       .Incorrect connect message:
        When the "ATX6&N16&T1" command is entered, modem will report the
        connect message as "CONNECT CONNECT" instead of "CONNECT" only.
       .Incorrent PnP ID of Omni:
        When the "ATI9" command is entered, the Omni modem will report the
        PnP-ID as "ZX0100" instead of "ZX0400".
    7) Security function:
       .Cannot dial the telephone number with *G2 and *G4 security function:
        When *G2 and *G4 function is used, modem will not call back the last
        forty telephone numbers stored in modem.
       .Insecure connection with secure function *G2:
        After answering the password correctly with *G2 function, the modem
        will accept incoming call without checking the password before dialing
        out the call back phone number.
       .Hang with secure function *G2:
        If the remote site does not reply the call back within 10 times, the
        local modem will stay in an unknown state.
       .The answer modem will hang with *G3 function:
        When there is no DTE connected with modem and modem stays at the
        the answer site with *G3 security function, the modem will hang if
        there is an incoming call with correct password.
       .Cannot use *G1 and *G2 security function in MNP5 error control mode:
        When the modem enable the *G1 function with MNP error control option
        and call to a ZyXEL modem, modem can not connect successfuly and
        stayes in an unknown state.
       .Garbage displayed in *G1 security function with non error control
        mode: There is garbage be showed in terminal after the connection
        message when "*G1&K0" command is entered.
    8) Physical layer stability:
       .Improve the sensitivity of V.29/V.27t/V.26b used in four wire leased
        line operation.
       .Happen deadlock when using D/V key to abort V.34 handshaking procedure:
        When you try to use D/V key to abort the handsaking procedure used
        V.34 leased line mode operation, the modem may happen deadlock and
        can not enter into data state successfully.
       .Failed to retrain in V.34 synchronous mode:
        When modem stays in V.34 synchronous mode operation, modem will
        not retrain successfully when the line condition of channel is varied.
       .Improve the stability of V.27bis:
        When the E2864L modem stays in "AT&K0&T1" ALB testing mode, there
        will be a lot of garbage displayed in the screen about 10 to 20
        minutes after the connection message.
       .Compatible the Austrian Public Paging System II ("OePR-II"):
        The modem is unable to establish a connection with public paging
        system II in Austria.
    9) Leased line and synchronous operation:
       .Cannot re-synchronize in the leased line operation:
        When modem operates in four wire leased line with V.27t/V.26b mode
        and the channel is dropped for a while, the modem will not
        re-synchronize when the channel is restored.
       .Cannot work with synchronous slave clock mode
       .Two wire leased line cannot tranceive data while one modem
        switches from power off to on and the other modem stayes in retrain
        state.
    10) Diagnostic feature:
        .The RDL function failed to work:
         When there is no DTE connected with modem and modem is configured as
         the RDL granted, modem will hang if the remote site initiates
         the RDL action.
        .Failed to work with selftest in error control mode:
         When "AT&K2&T8" command is entered, the modem will not report the
         connect message and hangs in an unknown state.
        .Show incorrect test pattern:
         When "AT&T7" command is entered in escape state, the first character
         displayed in screen does not belong to the selftest pattern.
        .Fail to use the remote configure feature with V.22bis mode:
         When the "AT*W32" command is entered in the escape state with V.22bis
         connection, the modem will report "NO CARRIER" instead of "OK".
    11) V25bis command set:
         Cannot dial with the V.25bis synchronous operation mode:
         When you plugs out the RS232 cable and then plugs in again, the
         modem can not accept the V.25bis synchronous command anymore.
    12) Lockup problem:
         When the rate negotiation happens about one second after the
         connection, the modem lockups forever with blinking both V34 and
         V32b LEDs. And can not be abort with D/V key.


 2. Fixed fax bugs:
 ------------------
    1) Cannot answer the incoming fax with 2MB internal DRAM:
       When the modem with built-in 2MB DRAM and entered with "+FCLASS=Z
       +FZF=2 S0=2 &W0Z0" command, the modem will not answer the incoming
       fax automatically if the DTE is turned off.
    2) Cannot receive a fax correctly after a V.34 data connection:
       If user switches between data and fax calling from the E2864 to
       a Motorola or receiving a data call from a Motorola modem the modem
       will hang up and it will no longer receive a complete fax call after
       any data call.




-----------------------------------------------------------------------------




                                                               March 14, 1996

      Release Note on Elite 2864 Version 1.12 (aka "CeBIT'96 Release")
      ----------------------------------------------------------------


 1. Fixed modem bugs:
---------------------
    1) Failed to work with the external sync clock:
       In the external synchronous clock (AT&X1) mode, the modems could
       connect to each other but had a lot of bit error.
    2) The O288S firmware could not recognize the incoming ring signal in
       Germany.
    3) Modem hang when security function enabled:
       When the security function was enabled by AT*G1 or AT*G2 and the
       entered password was wrong, the modem should hang up and report
       "NO CARRIER". But the modem hang in an unknown state.
    4) Incorrect password response in security function:
       When security function was enabled by AT*G5, the echoed password was
       followed by "<CR>" instead of "<CR><LF>".
    5) Abnormal hang-up when security function was enabled:
       When the security function was enabled, the modem could not perform
       analog loop back test by AT&T1 command. The modem would hang up and
       report "NO CARRIER" immediately after connection made by "AT&T1"
       command. With ATI2 command, the disconnect reason was shown as
       "Security Check".
    6) Wrong break handling:
       After pressing the control-break key, the TXD LED lights up for a very
       short time and the RXD LED lights up for a longer time. When the
       control-break key was pressed again, only the TXD LED lights up but the
       RXD LED remains off.
    7) Did not report the first RING:
       For example, the auto-answer mode was enabled by setting S0=1. When the
       first ring signal came, the modem went off-hook directly and starts to
       handshake without reporting "RING" to the DTE.
    8) Compatibility problem with Penril modem:
       When the modem was connecting with the Penril modem, the handshaking
       would fail during the phase 2 of V.34 hand shaking procedure.
    9) Wrong help message:
       If the multi-language feature of Germany version was enabled (S63=1),
       a wrong message "&N61 V.34b 31200" would be shown on screen with "AT&$"
       command.
    10) Wrong indication of AA LED:
        The indication of AA LED was incorrect when the modem was set by the
        following command sequence:
        . AT&FS1=1&WZ :
        . AT&FS0=1    : AA LED lights on and indicates auto-answer mode.
        . ATZ         : AA LED lights on but the S-register S0 is equal to 0.
    11) Failed to respond to the ATX0D command:
        When "ATX0D;" command was entered, modem would hang and fail to
        accept the AT command.
    12) Could not detect incoming ring signal:
        After executing "ATDxxxx;" and then "ATH" command, the modem would not
        be able to recognize the incoming ring signal.
    13) Failed to dial with the synchronous V.25bis command:
        When the modem started dialing with the V.25bis "CRN" command, the
        dialing digits did not go through and then modem went on hook.
    14) Failed to perform the analog loopback with self-test (AT&T8) in the
        non-error control mode (AT&K0).


 2. Fixed fax bugs:
 ------------------
    1) Wrong result with the "ATI2" command after FAX send/receive:
       After a fax connection, with the "ATI2" command, the modem reported
       the last baud rate with the wrong value of "28800".
    2) Improved reliability of V.21 HDLC receiving.
    3) The compatibility problem with Panasonic fax machine:
       When the FAX machine did not send the ANSWER tone, the modem would
       disconnect the outgoing call instead of sending out the fax.
    4) The problem of the Postscript FAX receiving/printing fixed.
       Postscript printing margin can be configured by paper type.

 3. Fixed voice bugs:
 --------------------
    Incorrect RI lead indicator of RS232:
    When modem went off-hook to answer the incoming call and play the voice
    greeting message in the voice mode, RI lead (pin 22 of RS232) kept high.
    Even aborting or terminating the voice playing, RI was still high.


 4. New modem features:
 ----------------------
    1) Support Germany message display for commands:
       . ATI2  : report link diagnostic status
       . AT&Vn : view current active or user profile settings
       . AT#B3 : measure the ring cadence
       . ATDL  : dial the last-dialed number
    2) When the DTE speed was set to 19200, the highest connection rate
       would be limited to 19200 bps.


 5. New fax features:
---------------------
    A fax protocol capture utility was implemented for debugging the
    FAX compatibility problem.  This feature is not available for the FAX
    direct printing mode.

    S76: bit0 =  1       FAX response capture enabled
         bit1 =  1       FAX command capture enabled
         bit2 =  1       V.21 HDLC Tx/Rx capture enabled

    Use "AT+FZX?" command to show the captured log on terminal.


 6. New voice features:
-----------------------
    1) Add three sampling rate : 7200, 8000, 11025 bps
    2) Add three digital compression algorithm : DVI ADPCM, A-law PCM,
       Mu-law PCM.
    3) The command "AT+VSM=?" will show you how to use these new features.
        AT+VSM=?
         2 ;ZyXEL ADPCM ;2Bit ;(7200,8000,9600,11025)
         3 ;ZyXEL ADPCM ;3Bit ;(7200,8000,9600,11025)
        30 ;ZyXEL ADPCM ;3Bit ;(7200,8000,9600,11025)
         4 ;ZyXEL ADPCM ;4Bit ;(7200,8000,9600,11025)
        40 ;DVI   ADPCM ;4Bit ;(7200,8000,9600,11025)
        80 ;A-law   PCM ;8Bit ;(7200,8000,9600,11025)
        81 ;Mu-law  PCM ;8Bit ;(7200,8000,9600,11025)
        OK
       For example, to set DVI ADPCM with 8000 sampling rate, you use the
       command:
        AT+VSM=40,8000
       The power on default sampling rate is 2Bit ADPCM with 9600bps.



Known bugs of v1.12: ("very sorry, very sorry - it's not perfect yet")
    These bugs were recognized on March 14th, 1996:
 ------------------------------------------------------------------------
    1) The modem has problem with 11-bit character length.
    2) Remote configure (*Wab) fails over V.22bis connection.
    3) Security function (*G3) fails and causes modem reset.
    4) Connect with V.22bis (2400 bps) with MNP5 data compression
       will transfer no data - please disable MNP5 feature with ATS38.5=1



-----------------------------------------------------------------------------



          Release Note on Elite 2864 Version 1.11      Jan. 26, 1996



 1. Improved the V.34 performance.
 ---------------------------------

 2. Fixed modem bugs:
 --------------------
    1) The "carrier lost 1" problem:
       When the modem is connected to a Rockwell chipset based modem on some
       long distance calls, the modem will drop the line immediately with
       disconnect reason shown "carrier lost 1".
    2) Incorrect LED indication:
       The V34 LED does not turn on if "AT&N62" to "AT&N72" command is
       entered. The "V32b" LED will turn off if a V.32 connection is
       established with "AT&N4" command.
    3) Can not connect on two wire leased line mode:
       If "AT&L1" command is entered, the modem will go on-hook and report
       "NO CARRIER" immediately after connection.
    4) Wrong leased line operation:
       If "AT&L1" command is entered, modem will go to handshaking procedure
       immediately.
    5) Incorrect response for numeric form result code (ATV0):
       If "AT&K0&N14V0" command is entered, modem reports connect message as
       "10" instead of "10<CR>" after connection.
    6) Unable to use V.25bis command set.
    7) Sometimes in data state, the modem does not disconnect when DTE drops
       the DTR signal.
    8) Impoved the reliability of recognizing the dial tone, busy tone and
       ring signal in Italy.

 3. Fixed fax bugs:
 ------------------
    1) Incorrect response:
       Modem reports "+FHNG:70" followed by "NO CARRIER" while the incoming
       call is a voice call.
    2) Some compatibility problems of class 1 commands with Win95.
       now the modem responses to the AT+FCLASS=? inquiry with the string
       "0,1,2,2.0,6,8,Z"

 4. Fixed voice bugs:
 --------------------
    1) Fix the problem of BUSY tone detection of Italy:
       In Italy, the modem does not recognize the busy tone in voice mode.
       After recording a message, the modem does not go on-hook and
       continue to record the busy signal.
    2) Improved the VCON reliability.

 5. Added new features:
 ----------------------
    1) Some new user friendly commands:
       ? or $    Basic command summary help.
       &? or &$  Extended AT& command summary help.
       *? or *$  Extended AT* command summary help.
       #? or #$  Extended AT# command summary help.
       +? or #$  Extended AT+ command summary help.
       S? or S$  Show complete register list
       Sxxx=?    Show the function of Sxxx register.
       Sxxx=$    Show the function of Sxxx register.

    2) Multi language support:
       Right now, only two languages are implemented.
       If the value of S63 equals 1, the summary help is displayed in
       German.
       If the value of S63 equals 0, or any value other than 1, the
       summary help is displayed in English.

       [Note]
       . Right now, not all the information pages are available in both
         languages. So the help display is 'a bit' mixed sometimes. But
         this will be filled up with the correct language as soon as
         possible.

    3) Report "DATA or FAX" before showing connect message:
       If bit7 of register S57 is set (default is reset), an additional
       connect message will be displayed on the screen. The additional
       message is "DATA" or "FAX" for data or fax connection respectively.
       For example,
                        AT+FCLASS=1
                        AT+FAA=1

         example 1:     DATA
                        CONNECT 115200/V34  28800/V42b/SREJ

         example 2:     FAX
                        CONNECT

    4) The capability of fax receiving in class 6 is configurable.



=============================================================================



          Release Note on Elite 2864 Version 1.10     Dec. 22, 1995



 1. Fixed modem bugs:
 --------------------
    1) Improper remote configuration:
       The local modem can not read or write the remote modem's profile on
       connection.
       (Note: Remote configuration is not inter-operable between an Elite
       2864 and a U-1496 series modem. The Elite 2864 has more S-registers
       and some S-registers have different meaning.)
    2) AT&T6 (initiate remote digital loopback) does not work.
    3) Fail to recognize the dial tone of some PABXs:
       During dialing, the modem reports "NO DIALTONE" when the dial tone
       is not a continuous signal (with ON/OFF cadence).
    4) Incorrect LED indication of dialing, handshaking and retrain:
       The V32b LED does not flash on and off for 1/2 second each to indicate
       that the modem is dialing. Neither do the V34 and V32b LEDs flash
       on and off for 1/2 second each to indicate that the modem is in
       handshaking or retrain.
    5) "ATM3" does not work:
       With the "ATM3" command, the dialing tone is still heard from speaker.
    6) Type 1 security function does not work (the *G1 and *G2 commands).
    7) Does not support up to 50 passwords in security function:
       For example, in *G4 setting, the modem is not able to detect any
       password at location from #10 to #49.
    8) Unable to recognize ring signal on some bad local loop lines.
    9) Incorrect repeat dialing function:
       When bit0 of S38 is set, the modem will not dial the same number again
       while the modem reports "BUSY" after dialing.
   10) Incorrect cyclic dialing:
       When bit3 of S44 is set, the modem will not dial the second number
       while the modem reports "BUSY" after dialing.

 2. Fixed fax bug:
 -----------------
    1) Incorrect LED indicator:
       When "AT+FCLASS=6" command is entered, the V34 LED turns off in
       multi-auto mode (AT&N0).

 3. Fixed voice bug:
 -------------------
    1) Sometimes the modem hangs after issuing <DLE><ETX> to finish playing
       voice.

 4. Add new features:
 --------------------
    1) Set the dial back timer S64 for security call back function:
       (default=0, in seconds)
       With level 2 security, the answer modem will disconnect the line if
       the password has been found in its pre-stored acceptable list.
       The answer modem will dial back the phone number corresponding to the
       dial-in password, when the dial back timer (containded in S64) is
       reached.
       If the content of S64 violates the PTT regulation, the dial back timer
       will be automatically set to the value defined in PTT regulation.
       S64 can be used to control the dial-back waiting time to avoid dialing
       back too quickly that the calling modem's line is still busy.



=============================================================================



             Release Note on Elite 2864 Version 1.09     Dec. 8, 1995


 1. Fixed modem bugs:
 --------------------
    1) Fail to recognize the Italian dial tone.
    2) Failure in dial tone monitoring:
       When "ATH1" command is entered, the modem goes offhook but there is no
       dial tone coming from the modem's internal speaker.
    3) Incorrect response for numeric form result code (ATV0):
       For example, when "AT+FCLASS?" command is entered, modem responds with
       "0<CR>0<CR>" instead of "0<CR><LF>0<CR>" in numeric form.
    4) Problem on forcing V.22bis retrain:
       In V.22bis escape state, when "ATO1" command is entered to force the
       modem to request a retrain, the connect message shows "V.32 9600T".
       And sometimes the retrain fails.

 2. Fixed fax bugs:
 ------------------
    1) Problem on fax reception:
       Sometimes the top portion (the first half inch) of the received page
       is chopped off when the receiving speed is 14400bps.
    2) The AT+FZF=1 setting is not saved with AT&W command.

 3. Add new fax feature:
 -----------------------
    1) The local ID string (AT+FLI=) can be saved to EEPROM with AT&W
       command.

 4. Add new voice features:
 --------------------------
    1) Some programmers need the feature to enable the speaker when recording
       from telephone line. In this version, we let users use VLS=18 (16+2,
       speaker and Telco Line) to enable the speaker.
    2) Some programmers also report that the transmit level of Tone (+VTS)
       and Voice (+VTX) are different. In this version, we let users set
       the transmit gain separately, AT+VGT for Voice and AT+VGN for Tone.
       The default value of AT+VGT is 128. The default value of AT+VGN is
       60.
    3) In this version, users can use s60 bit 4 to disable the Telco line
       playback AGC.

 5. Important notes for voice programmers:
 ----------------------------------------
    From version 1.07, the Near Echo Cancellation is disabled as the default
    setting, this decreases the sensitivity and reliablity of DTMF detection
    when playing voice message. Set the s60 bit 7 will enable the NEC !



=============================================================================



             Release Note on Elite 2864 Version 1.08     Nov 27, 1995


 1. Improved V.34 performance:
 -----------------------------
    1) Solve the "carrier lost 1" problem:
       When connected with a modem employing Rockwell's chipset, after about
       10 minutes of connection, the modem will drop the line with disconnect
       reason shown "carrier lost 1".

 2. Fixed modem bugs:
 --------------------
    1) Cannot report "BUSY" while waiting for the first and second dial tone:
       If bit6 of S57 is set, the modem will report "BUSY".
       If bit6 of S57 is reset (default), the modem will report "NO DIALTONE"
    2) Problem with V.23 mode connection:
       The modem will hang-up within 5-6 seconds of V.23 mode connection.
    3) Wrong change of S-register:
       When "AF+FCLASS=0" command is entered, the S register S19 will be
       cleared.
    4) Cannot transfer file using XON/XOFF control:
       Modem hangs up the call when using XON/XOFF flow control for file
       transfer. And the disconnect reason shows "Local Hang Up".

 3. Fixed fax bugs:
 ------------------
    1) Fail to detect busy tone:
       After dialing out the number, the modem does not report "BUSY" when
       the central office sends busy tone to modem.
    2) Fail to go on-hook:
       If the modem answers a call with "AT+FCLASS=1;FAA=1;A" command and
       there is no response from remote modem, the modem will report
       "CONNECT", "ERROR" and then "OK". But actually the modem does not go
       on-hook.
    3) Wrong LED indicators:
       If DRAM is installed in modem and "AT+FZF=3" command is entered,
       the EC and SP LEDs keep on after pulling out the RS-232 cable.

 4. Fixed voice bugs:
 --------------------
    1) Fail to switch off the power to telephone jack:
       If "AT+FCLASS=8" and "AT+VLS=1" is given, the loacl telephone is still
       powered after "AT+FCLASS=0" command is entered.
    2) Wrong response to "AT+VSM" command:
       When "AT+VSM" command is entered with incorrect values, the modem does
       not respond with an "ERROR" message.
    3) Both V34 and V32b LEDs are not turned off in voice mode.

 5. Add new features:
 --------------------
    1) Support Russian CNI detection.

 6. Note:
 --------
    1) Change the default value of ring volume control from "N5" to "N3".



-----------------------------------------------------------------------------



             Release Note on Elite 2864 Version 1.07     Nov 16, 1995




 1. Improved V.34 performance.
 -----------------------------

 2. Fixed modem bugs:
 --------------------
   1) Wrong response to ATDT<phone number>;H command:
        the modem doesn't hang-up after dialing the phone number.
   2) Wrong response to AT&FX7S6=5&W1Z1 command:
        viewing the setting by AT&V, the modem responds with the default
        setting of X5 and S6=2, in stead of X7 and S6=5.
   3) Wrong AT command entered in escaped state will cause hang:
        if any wrong AT command is issued in escaped state, the modem will
        not respond to any futher AT commands. Modem should be powered off
        and on to reset.
   4) Modem hangs:
        when the modem is ringing and the RS-232 cable is pluged in, then the
        modem will not respond to any futher AT commands. Modem should be
        powered off and on to reset.
   5) Unable to send data calling tone for V.32b/V.22b/ZyX19200/ZyX16800
        modes.
   6) Connection problem when calling tone enabled:
        When the calling tone is enabled (AT&F&N0S48.2=1), the connection
        made with U-1496 plus models can only reach 16800 bps (the 19200 bps
        connection is not possible).
   7) Wrong LED display:
        When the modem is connected with ZyX 19200 or 16800 bps, the LED V34
        and V32b are ON. That is OK. But when you enter "+++" escape command
        and then "AT" command, the V32b LED goes OFF.
   8) The S14 register does not contain the exact value of the command AT*M0
        and AT*M1. For example, with command ATZ1*M1&V, the display shows the
        value of S14 bit 0 is 0; with command ATZ1S14.0=1&V, the display shows
        *M0.
   9) The supervisory password entry can take only 7 characters:
        Try setting for example password #8 but type more than 8 characters
        and you will get "ERROR".
  10) Problem of connecting to host with 7 data bits, even parity and 1 stop
        bit protocol:
        There is a problem when you try to connect to the "telebanking"
        service, where 7E1 protocol is used. What is supposed to happen is
        that you enter the user ID followered by <CR>, and then the host
        prompts you for the password. The bug is as soon as a numeric digit
        is entered, it behaves like a <CR> has been entered as well, and the
        host prompts for the user-ID again. After 3 incorrect attempts, you
        are automatically logged out.
  11) On the password table, for example setting *G4, the modem is not able
        to detect any password at location #10 to #49.

 3. Fixed fax bugs:
 ------------------
   1) In direct fax printing mode (AT+FCLASS=Z and AT+FZF=0), when a data
      call comes, the modem serial port will hang. (Can't switch from
      parallel port to serial port.)
   2) V34 and V32b LED doesn't goes off in FAX mode.
   3) CD on immediately after dialing in FAX Class 1 mode.
   4) In fax DRAM retrieing mode, the RS-232 RI signal is not sent to DTE
      when "RING" string is sent to DTE.

 4. New fax printing feature:
 -----------------------------
   1) Support Postscript Printer.
   2) Support HP DJ500 series Inkjet Printer.
   3) Support Serial Port Fax Printing.
   4) Speedup PCL Printing.
   New FAX feature Setting Registers:
     S72:  Set Printer Type
                $0 : HP laser jet II series PCL Printer
                     HP Deskjet 500 Series
                $1 : HP laser jet III series PCL Printer
                $2 : POSTSCRIPT Level I Printer
     S73:  Flag for fax printing
              bit0: Fax Printing Port
                      : 0 = Parallel Port (default)
                      : 1 = Serial Port
              bit1: Fast PCL Printing.
                      : 0 = On (default)
                      : 1 = Off
              bit2: PCL Print resolution
                      : 0 = 300dpi (default)
                      : 1 = 150dpi
              bit3: Resize Flag
                      : 0 = do not resize
                      : 1 = resize (default)
              bit4-6: Paper Size
                      : 000 - LETTER(default)
                      : 001 - LEGAL
                      : 010 - A4

     AT+FZT=xxx : Set Fax Speed in Direct Fax Printing Mode.
         +----------+-----------+-------------------+
         |          |           |   Scanline Time   |
         |FZT Value | Fax Speed |  Hi-Res   Low-Res |
         +----------+-----------+---------+---------+
         |   0- 15  |   14400   |    0ms  |    0ms  |
         |  15- 31  |   14400   |    5ms  |   10ms  |
         |  32- 47  |   14400   |   10ms  |   20ms  |
         |  48- 63  |   14400   |   20ms  |   40ms  |
         |  64- 95  |   14400   |   40ms  |   40ms  |
         |  96-127  |    9600   |   40ms  |   40ms  |
         | 128-195  |    4800   |   40ms  |   40ms  |
         | 196-255  |    2400   |   40ms  |   40ms  |
         +----------+-----------+---------+---------+
     AT+FZT=? : View current setting of Fax Speed in Direct
                Fax Printing Mode.

   Usage of Direct Fax Printing via serial port:
   ---------------------------------------------
    1) Connect modem to PC via the RS-232 serial port.
    2) Use a terminal Software to communicate with Modem
    3) Set Baudrate = Serial Printer's Maximum Baudrate.
       (For example, if the max. baudrate of your serial printer is 38400,
        please use 38400 for terminal software)
    4) Setup S72. (0,1 for PCL, 2 for Postscript printer)
    5) Set AT+FZF = 0. (Direct Fax Printing)
    6) Set AT+FZT Value.
       (This value relies on the printer speed, baud rate of serial port and
        printing language (Postscript is faster than PCL).
        The principle on deciding this value is:

                  PRINTING MUST BE FASTER THAN FAX RECEVING!!!

        Because in AT+FZF=0 mode, received data is sent to printer directly.
        Therefore, fax printing speed must be faster than fax receving speed.
        Otherwise the internal buffer will overflow and some scanlines must
        be discarded.

        First, you can try AT+FZT=150. If it is OK, then you can try 100,
        64, 48, 32, 16 and 0 to get the optimal speed. This value depends on
        your printer's printing speed.

    7) Setup S73.
       (Configure fax printing options, bit 0 must be 1 for serial printing)
    8) If auto-receving is needed, please set S0=1.
    9) Set AT+FCLASS=Z. (Enable Fax Printing)
   10) Use AT&WZ to store current setting to profile 0.
       (Store All S-Regs and Baudrate Settings in EEPROM)
   11) Connect modem to printer Via the RS-232 serial port.

   Note: 1) In Serial Printing Mode, only DTR flow control is supported.
            Please setup your printer to accept DTR flow control.

         2) Because the modem's serial port type is of DCE type, the
            printer's serial port type must be of DTE type. If the printer's
            serial port is also of DCE type, a NULL MODEM adapter (or cable)
            is needed.

            <1> Modem in normal operation :
                             RS-232 Cable
                 Modem(DCE) <------------> PC(DTE)

            <2> Modem is connected to a DTE Serial Printer:
                             RS-232 Cable
                 Modem(DCE) <------------> Printer(DTE)

            <3> Modem is connected to a DCE Serial Printer:
                                          RS-232 Cable
                 Modem(DCE) <--> Adapter <------------> Printer(DCE)

         3) In order to achieve maximum throughput, please use the maximum
            baud rate your printer permits.

 5. Fixed voice bugs:
 --------------------
   1). Playing problem with 3-Bit ADPCM data.
   2). Increase the reliablity of VCON detection.
   3). Enhance the voice quality of local telephone phone set.

 6. Add new voice features:
 --------------------------
   1). When first playing through telephone line, the default setting is
       disable the Near Echo Cancellation. The users can enable this feature
       by setting the bit 7 of s60 to 1.



-----------------------------------------------------------------------------



             Release Note on Elite 2864 Version 1.06     Sep 13, 1995


 1. Improved FAX V.17 receiving performance.
 2. Improved FAX V.21 sensitivity.
 3. Improved FAX printing quality.
 4. New FAX feature:
    (1) Function of s73 bit3:
        Set S-register s73 bit 3 to 1 (ATS73.3=1) will enable direct FAX
        printing application to print longer FAX pages to LETTER size paper.
        For off-line DRAM receiving and printing application, if s73 bit
        3 is set to 1 the printing driver will automatically and dynamically
        select a zooming factor and print the FAX pages to fit the selected
        paper size. The zooming factor depends on the page length of the
        received FAX. The default setting of this feature is on (s73 bit 3
        is set to 1).
    (2) AT+FZL? command:
        Show FAX receiving log
        For example,
        No.    Remote FAX ID     Speed Pages Size Status Hardcopy Retrieved
        === ==================== ====== === ===== ====== ======== =========
        1   886-35-782439        * 9600  3   110k   OK    YES
        2   1-714-693-8811        14400  2    90k   OK
        Free DRAM Size: XXX
        Where  "No" ------------- Session log number
               "Remote FAX ID" -- Sending FAX machine indentifier (TSI)
               "Speed" ---------- Fax receiving speed and resolution
                                  "*" - fine resolution
               "Pages" ---------- Number of pages
               "Size" ----------- Log size (number of bytes)
               "Status" --------- Receivig result , "OK" or error code
               "Hardcopy" ------- FAX printing status
               "Retrieved" ------ Retrieved by FAX software if marked "YES"
    (3) AT+FZP=nn command:
        Print the received FAX by specifying the session log number "nn".

 5. Fixed bugs:
    * FAX CNG tone transmitting:
      Sometimes it works but sometimes it doesn't work.
    * Data calling tone:
      When the data calling tone is enabled and a connection is made to another
      modem, the remote modem will show the wrong connect message like
      "CONNECT 115200/V.22 1200/NONE", but acturally the connection is not
      successful.
    * AT*Pn:
      AT*Pn can not be saved to profile. For example, originally at&f&v shows
      *P11. When at*p9&w0z&v is issued, the modem still shows *P11 instead
      of *P9.
 6. Improved performance on FRN (fast rate renegociation).



------------------------------------------------------------------------------



             Release Note on Elite 2864 Version 1.05     Aug 14, 1995


 Note: Version 1.03 and 1.04 are not formally released, their relase notes are
       accumulated here.
 1. Improved connectivity on noisy lines with some V.FC modems.
 2. Fixed bugs:
    * S38.5=1 does not disable MNP5
    * Wrong displayed FAX connect message for command ATX7#B1+FCLASS=6 string.
    * The top portion (0.5/1.0 inch) will be chopped in fax reception when a
      fax is received in class 2.0 mode.
    * The connect message of V.22bis (ATX7) was 2400/ARQ/V.22/V42b.
      It is corrected to 2400/ARQ/V.22b/V42b.
    * AT command response error:
        the response of AT&N after AT& was ERROR.
    * Wrong display of V34 and V32b LEDs. For example, when the modem
      connects in ZyX mode, both the V.34 and V.32 LED come on but when there
      is a retrain the V32bis LED goes off.
 3. When the DTE speed is set to 9600, the highest connection rate will be
    limited to 9600 bps.
 4. The default connection mode for multi-auto mode will be V.34 28800 on
    leased line operation.
 5. Improved performance on FRN (fast rate renegociation).



------------------------------------------------------------------------------



             Release Note on Elite 2864 Version 1.02     Aug 01, 1995


 1. Fixed bugs:
    * ATS0:
        If you give ATS0=3 or other values, very often the modem answers on
        the first ring.
    * ATS1:
        The S1 register does not collect the number of rings received.
    * ATS38:
        The command S38=32 (or S38.5=1) that disables MNP5 doesn't work.
    * MNP hang:
        After retraining and connecting on MNP mode, the modem will "hang"
        and can not accept any command.
    * V32bis hang:
      When the modem is connected in V32bis, sometimes, the connection can
      not be dropped by lower DTR. The DTR LED is always ON and the modem
      has to be turned off.
    * The sending and reception of break signal does not work correctly for
      error control mode.
    * The response of ati2 command (following at&z? command) is incorrect.
    * When the modem is connected in V.22bis, the SQ LED will flash or
      always OFF.
    * When ATQ2 is issued, the modem still responds to EDR and gives RING
      message.
 2. ATI2 will display both transmission and receiving connection rate.
 3. Remove two <CR><LF> from at&v response.
 4. Add AT&N12 to on-line help menu.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 1.01     July 23, 1995


 1. Improved V.34 modem performance.
 2. Fixed bugs:
    * In the on-line help, there are no descriptions for the commands ATN0-7
      and ATO1.
    * Setting s35=96 and then issuing at&w0 the profile protection function
      works correctly for the first time. For every later issued at&w0
      command, the modem will ask for the password but it will give an
      "Error" response when the correct password is entered.
    * connect message:
      When a V22bis connection is made, the modem displays a V22 connection.



------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 1.00     Jul 19, 1995


 1. Not finished functions but will be included in the near future:
     * Remote configuration
     * Password check and call back security
 2. Known bugs but will be corrected in the near future:
     * cellular mode connection:
         Cell mode works fine between U1496 and Elite. Sometimes, it does not
         work between Elite and Elite.
     * In the on-line help, there are no descriptions of the commands ATN0-7
       and ATO1.
     * Setting s35=96 and then issuing at&w0 the profile protection function
       works correctly for the first time. For every later issued at&w0
       command, the modem will ask for the password but it will give an
       "Error" response when the correct password is entered.
     * ATS0:
         If you give ATS0=3 or other values, very often the modem answers on
         the first ring.
     * ATS1:
         The S1 register does not collect the number of rings received.
     * ATS38:
         The command S38=32 (or S38.5=1) that disables MNP5 doesn't work.
     * connect message:
         When a V.22bis connection is made, the modem displays a V.22
         connection.
 3. Fixed bugs in the version:
     * Caller ID:
         Caller ID works fine at 57.6K bps but it has problems at 115.2K bps.
         The problem is when one gets the caller name: xxxxxxxx but then the
         caller nummber has garbage characters.
     * command *q3:
       when the line condition is bad the connection is not dropped.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.09     Jul 10, 1995


 1. Add the function of Distinctive Ring (DR).
 2. Improved V.34 modem performance.
 3. Fix the bug of AT*E1: If you set the modem with *E1 and call a modem
    without error corretion capability, you get a non-error controlled
    connection instead of hanging up.
 4. Fix the bug of ATO1: After issuing ATO1 command in escaped state, the
    modem gives the old connection speed instead of the newly handshaked
    speed.
 5. Correct the LED indication of ZyX modes: both V34 and V32b LEDs will be
    ON.
 6. Fix the bug: With &B0 and S44=64, the modem connects but the connection
    string has garbage.
 7. Fix the bug: Setting S44=8 will not dial out more than one cycle.
 8. Solve the problem of 2W leased line asynchronous mode operation.
 9. Fix the bug: AT+VLS=0 returns "VCON" instead of "OK".
10. Fix the bug: ATS41.6=1 does not suppress the first ring.
11. Fix the bug: The command ATI2 in a V.34 connection always displays "0"
    for the round trip delay.
12. Fix the bug: The modem sometimes HANG with the CD on and the CD remains
    on even if you lower the DTR.


-----------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.08     Jul 05, 1995


 1. The configuration of DRAM size can be 8M, 4M or 2M bytes with this version.
    You have three options of installing DRAM chips for FAX receiving/storing.
    Here are the options of instellation:
      (a) 4 chips, you get full size of 8M bytes.
      (b) 2 chips on U38/U39, you get 4M bytes.
      (c) 1 chip on U27, you get only 2M bytes.
 2. Improved V.42 compatibility.
 3. Fix the bug: The modem can not correctly send and receive data with
    at&n12&k0 (V.23 mode).
 4. Improved V.34 modem performance.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.07     Jun 30, 1995


 1. Improved quality of Class 2 FAX receiving.
 2. Improved V.34 modem performance.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.06     Jun 29, 1995


 1. Fix the bug: Modem can not detect incoming ring in parallel port mode.
 2. Fix the bug : Modem can not detect incoming ring after modem hangup.
 3. Fix the bug: In fax receiving/printing application, some received pixels
    will be missed when printing to a low speed printer.
 4. Improved reliability of port selection (Serial/Parallel/Printer).
 5. Improved V.34 modem performance.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.05     Jun 27, 1995


 1. The factory default setting has been changed for the new release firmware.
    If your modem is not powered on by factory default setting, please power
    on your modem and pressing the D/V switch after loading the new firmware.
 2. Fix the bug: when a call is made from U-1496E+ multi-auto mode to E2864
    multi-auto mode, the latter detects it as a fax calling.
 3. Fix the bug: ZyX 19200 negotiation sometimes fails, i.e. the E2864 itself
    hangs up when connected to a U-1496 plus modem at a very specific time.
 4. Fix the bug: ZyX 19200 retrain fails, i.e. the data can not go through
    after retrain when connected to a U-1496 plus modem.
 5. Improved V.34 modem performance.
 6. Fix the bug: AT+FCLASS=0 hangup the phone in voice mode.
 7. Fix the bug: Can not detect DTMF after generating beep tones (AT+VTS) in
    voice mode.
 8. Fix the bug: DTR drop hangs the modem when in voice play and record mode.
 9. Fix the bug: The modem does not send <DLE><ETX> at the end of recoring
    data.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.04     Jun 20, 1995


 1. Please use "ATUPX" command and select X-Modem protocol to upload file
    E2864.004 to update your modem firmware.
 2. CLASS 1 FAX commands are included in this version.
 3. For DRAM FAX receiving/stroring application, Add a S register bit to
    enable printing FAX pages which have been retrieved by the connected
    computer's fax program.
    S71   bit  5:
               0 - Modem will not print stored fax pages which are unprinted
                   but already downloaded to a computer fax program.
               1 - Modem will print the above stated fax pages upon
                   instruction.
    Please add "s71.5=1" to the end of the initialization string of a CLASS-2
    program to enable this funtion.
 4. Add the command "AT+VLH?" to query the current local phone on/off hook
    status. A value of 0 represents On-Hook and 1 represents Off-Hook.
 5. S56 is the hook flash timer in 10 ms units. A value of zero means it is
    according to each country's normal specification. (Default=0)
 6. By default, modem will not check busy status during dial tone detection
    and dialing priod. If S57.6=1, busy status will be checked.
 7. Bug in S48.3=1 function fixed.
 8. Bug in S38.0=1 function fixed.
 9. ATO1 status will be reflected in ATI2 response.
10. Fix the bug: when a call out is made, the speaker will falsely come on
    if the modem is escaped to command state and an AT command is entered.
11. Capable of fax receiving in multi-auto mode.
12. Improved V.34 modem performance.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.03     Jun 08, 1995


 1. Please use "ATUPX" command and select X-Modem protocol to upload file
    E2864.003 to update your modem firmware.
 2. Parallel port is ok with DOS zfossil driver now.
 3. Modem performance improved.
 4. In voice mode, the NEC (Near Echo Canceller) function is enabled and it
    gets ready at the first voice message playback of every call.
 5. In voice mode, the problem of maintaining playing queue is fixed.
 6. In voice mode, the Tx & Rx gain table is changed, the new range is
    as follows:
        -18dB to -18dB :  56 to  200, with 0.25dB resolution.
 7. The default response of "AT+VLS" is "VCON" to be compatible with U1496.
    The s48 bit 5 (s48.5) is used to enable the IS-101 command set in the
    future.


------------------------------------------------------------------------------


             Release Note on Elite 2864 Version 0.02     May 23, 1995


 1. Please use "ATUPX" command and select X-Modem protocol to upload file
    E2864.002 to update your modem firmware.
 2. Distinctive ring is implemented.
 3. EDR is implemented.  There are lots of differences compared with the U1496
    series EDR.  The major improvement is: all DTMF tones, Fax calling tone,
    and Data calling tone can be detected.
    The S51 register is used to define the EDR setting as:
        bits 0-1:
                0 0 - Disable EDR.
                0 1 - Report ring for 2 times.
                1 0 - Report ring for 4 times.
                1 1 - Report ring for 6 times.
        bits 2-3:
                0 0 - Disable DTMF tone detection.
                0 1 - Report "RING" for any DTMF tones.
                1 0 - Report "RING <DTMF>" for any DTMF tones.
                1 1 - Reserved.
        bits 4-5:
                0 0 - Disable FAX CNG tone detection.
                0 1 - Report "RING" for FAX CNG tone.
                1 0 - Report "RING 1" for FAX CNG tone.
                1 1 - Report "RING 2" for FAX CNG tone.
        bits 6-7:
                0 0 - Disable Data CNG tone detection.
                0 1 - Report "RING" for Data CNG tone.
                1 0 - Report "RING 1" for Data CNG tone.
                1 1 - Report "RING 3" for Data CNG tone.
 4. Fax DRAM receiving (+FZF=3) function is implemented.
    Please use class 2/2.0 compatiable FAX S/W to retrieve stored FAX.
    Be sure to include +FCLASS=2 (or 2.0) in the FAX S/W initialization
    string when used to retrieve FAX out of DRAM.
    This version of F/W is only for beta test.  Please do not use this version
    to receive your important fax.  It may lose FAX pages in some abnormal
    conditions.
 5. Add S register setting to select page size when printing FAX to a laser
    printer.
    S73 bits 4-5:
             0 0 - LETTER SIZE paper. (Default setting) (AT+FZS=0)
             0 1 - LEGAL size paper (AT+FZS=1)
             1 0 - A4 size paper (AT+FZS=2)
 6. Add one S register bit to select printer resolution.
    S73 bit 2:
            0 - 300dpi printer. (Default setting) (AT+FZR=0)
            1 - 150dpi printer. Speed up printing but sacrifice quality.
                Not recommended. (AT+FZR=1)
 7. Correct the FAX V.17 receiving problem.
 8. Correct false "Remote hangup" problem during V.42 handshaking.
 9. Correct numeric result code problem.
10. Change &K3 to &K4 as default.


------------------------------------------------------------------------------


        Release Note on Elite 2864 Version 0.01        May 16, 1995


 1. Please press the D/V button and turn on the Elite 2864 to do a hardware
    reset on the modem and have the modem load in the factory default
    settings and run a power on self-test at 57600 bps DTE speed and
    28800 bps DCE speed.
 2. Please use ATI1 to check the modem's version. Firmware version 0.xx is
    used for -test. If the a date code is displayed, the version is prior to
    0.01 or it is just a temporary test version. The formal commercial
    version will start from version 1.00.
 3. If the date code is prior to 5/15/95, please use ATUPX or ATUPA to update
    the firmware to version 0.01. The firmware file is E2864.001. Refer
    to chapter 3 of the 2864 series modem user's manual for procedures of
    updating the firmware.
 4. Available FAX command set :  a> Class-6 ZFAX
                                 b> Class-2 FAX
                                 c> Class-2.0 FAX
 5. For fax printing feature, please refer to 2864 series modem user's manual.
    Be sure to issue "AT+FZT" command to test your printer speed. The
    modem will adjust scan line time to fit your printer speed, and
    this speed parameter will be saved in non-volatile memory. You don't
    have to issue "AT+FZT" command again when you turn on the modem
    next time.
 6. Please refer to the chapter 4 of "2864 SERIES MODEM USER'S MANUAL"
    for the new VOICE features.
 7. The +VGT and +VGR command is ranged from 56 to 200 where the
    number means a GAIN from -36dB to +36dB in 0.5dB steps.
    ( 56=-36dB, 128=0dB and 200=+36dB)
    A value of 0 will make the modem to do "Automatic Gain control".
 8. The +VTD command is revised to :
        AT+VTD=<dur>,<int>
    where <dur> set the tone generation duration and <int> set
    the interval for every comma in the +VTS command.
    the units are 10msec and the default vale for <dur> is 50
    and <int> is 7.
 9. The +VDD command is revised to :
    The range of <dds> is from 0 to 15 and the default value is 4.
10. Not available function list in current firmware
    (1). Leased line function
    (2). V.25 bis
    (3). Caller ID and Distinctive ring
    (4). Class 1 fax
    (5). Data/fax auto detection
    (6). EDR ( Extended Distinctive Ring )
    (7). V.17 fax
    (8). Security function ( *G1 to *G6 )
    (9). Remote configuration

<EOF>