ZyXEL Communications Services GmbH.
                                                      edited by Manfred Recla
                                                                 May 18, 2001

             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.09                       April 20, 2001
             =================================================



   
     1. Version information:
     -----------------------
      Omni56K Plus :                         O56K :

      ati1                                   ati1
      10799                                  16332
      Omni56K Plus  1.09                     Omni56K  1.09
      2001 04 20 12:16                       2001 04 20 12:13

      OK                                     OK


    2. Firmware modifications:
    --------------------------
        - Fixed the FAX/DATA mode multi-auto detection problem with 
          Panasonic UF-550 fax machine.
        - Fixed the mass-production problem that caused by false busy
          detection with "short-short ring type switch".
        - Fixed the problem of false S7 time out when drop carrier and 
          call out during 6 sec period.



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







             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.08                       March 20, 2001
             =================================================


   
     1. Version information:
     -----------------------
      Omni56K Plus :                   Omni56K :

       ati1                             ati1
       54210                            22450
       Omni56K  Plus  1.08              Omni56K 1.08
       2001 03 20 09:44                 2001 03 20 09:40

       OK                               OK

    2. Firmware modifications:
    --------------------------
        - Fixed the firmware downgrade problem for Omni 56K plus.
           

    3. Firmware update limitation:
    ------------------------------
    3.1 List the Omni 56k Plus firmware update matrix, there are limitation to 
        change firmware. In some case , change firmware will cause country code 
        error. Don't update firmware against the following rule.

                                     Target version
                         1.05 and below	          1.06	        1.07	1.08        
              --------------------------------------------------------------
  original     1.05	      OK	           Not allowed	 OK	OK
  firmware     1.06	      Not allowed	   OK	         OK	OK
               1.07	      Not allowed	   OK	         OK	OK
               1.08  	      OK	           Not allowed	 OK	OK

     3.2  There are no limitation for Omni 56K to change firmware.






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





             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.06                    November 06, 2000
             =================================================


    1. Version information:
    -----------------------
       Omni56K Plus :                   Omni56K :

       ati1                             ati1
       54319                            01959
       Omni56K  Plus  1.06              Omni56K 1.06
       2000 11 06 15:08                 2000 11 06 15:06

       OK                               OK


    2. Firmware modifications
    ---------------------------
        - Fixed the problem that can not detect ring and DTR drop 
          when DTE send data contiguously.
        - Improve Rissian Caller ID detection capatibility.
        - Fixed the problem that false ring detection when dialing 
          on parallel telephone set.
        - Fixed the Busy detection unstable in Russian.
        - Fixed the undesire impulse produced in pulse dail out.
        - Fixed the MS-FAX compatibility issues that modem fail to
          receive or send pages.
        - Fixed the FAX issues with NEC FX-220 fax machine, that can
          not receive the 2nd page.
        - Added the DTMF CallerID feature.
        - Added the CallerID feature for Taiwan specification.
        - Added the callerID feature for Ukraine specification.
        - Improved Make/Break ratio accuracy for pulse dial.
        - Corrected the IMA ADPCM voice compression algorithm.
            The function is enable by AT+VSM=5,8000
        - Improved the connection stability for V.90 mode.
        - Fixed the FAX issues can not received in Windows 2000.
        - Fixed the V.90 bug that Rate unstable when FRN happen.
        - Improve V.90 performance and noise immunity.
        - Fixed the problem that modem traffic blocked when used 3 wire
          (TX/RX/GND) RS232 cable.
        - Fixed FAX Class 2.0 and FAX Class 2 DIS/DCS parameter 
          exchange error.
        - Fixed Russia ring detection fail bug.
        - Fixed O56K Plus Fax transmit error.
        - Fixed Security type 2 error.
        - Fixed the Local loop back function fail.
        - Fixed the Security function fail. 
        - Fixed the V.90 compatible problem with CISCO modem server.
        - Fixed the Poland PTT problem for ring sensitivity.
        - Fixed the hangup problem caused by FAX and Voice modem change.
        - Fixed detected false RING problem.
        - Fixed the Si3021 "Middle Hook" problem.
        - Fixed the V.90 LED mis-behavior problem.
        - Fixed the PTT problem of space duration in Poland.
        - Fixed the Si3034 "Reset" problem.



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





             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.05                    December 31, 1999
             =================================================

    1 Version information:

       Omni56K Plus :                           Omni56K :

       ATI1                                     ATI1
       29588                                    07612
       Omni56K Plus  1.05                       Omni56K 1.05
       1999 12 31 08:36                         1999 12 31 08:45
       OK                                       OK

    2. Firmware changed
       a. Fixed the bug that FAX and V.32 mode fail after V.90 connection.
       b. Fixed ATI19 behavior that some modem enter kernel mode when enter
          this command.
       c. Fixed the V.32 mode incompatibility issues with V.FC modem.
       d. Fixed file transfer fail when connect with ZyXEL Elite 2864 modem 
          after ATZ0 and ATZ1 command.
       e. Fixed "FAX Class 1 ATD issues" that ATD command fail after a fax
          session.
       f. Fixed the bug of "ATD0W.... " command fail.
       g. Fixed the Fax Class 2 compatible issues with some application 
          that can not find "0x11" pattern during fax operation.
       h. Improved Fax Class 1 compatibility.
       i. Fixed the bugs that ring detection fail after AT&T1 test.



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




             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.04                    December 09, 1999
             =================================================



    1   Version information:

       Omni56K Plus :                           Omni56K :

       ATI1                                     ATI1
       08286                                    45289
       Omni56K Plus  1.04                       Omni56K 1.04
       1999 12 09 11:26                         1999 12 09 11:04
       OK                                       OK

    2. Firmware changed
       - Only changed for ZyXEL internal request . No modem function or
         operation changed.



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




             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.03                    November 22, 1999
             =================================================



   1.  Version information:

       Omni 56K Plus:                           Omni 56K:
       --------------                           ---------
       ATI1                                     ATI1
       12389                                    49455
       Omni56K Plus  1.03                       Omni56K 1.03
       1999 11 22 21:20                         1999 11 22 21:09
       OK                                       OK

    2. Firmware modifications
    -------------------------
       a.  Added Fax Class 2 function. (AT+FCLASS=2)
       b.  Added Russian Caller ID.
       c.  Modified the retrain procedure for V.90 mode in Russian country
           code. That will force to V.34 mode if double handshaking happened
           in V.90 mode.
       d.  Fixed the bug of busy tone detection fail in Russia.
       e.  Fixed the multi-auto detection fail in fax function.
       f.  Fixed the V.22 call connection unstable.
       g.  Improved the "NO CARRIER" problem after long time file transfer.



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



             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.02                    November 22, 1999
             =================================================

             Version 1.02 was skipped !



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



             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.01                     October 03, 1999
             =================================================



   1.  Version information:

       Omni 56K Plus:                           Omni 56K:
       --------------                           ---------
       ATI1                                     ATI1
       12389                                    49455
       Omni56K Plus  1.01                       Omni56K 1.01
       1999/10/03 20:43                         1999/10/03 20:43
       OK                                       OK


   1.2	Fixed bugs and function improvement:
	a.  Adjust the DAA test threshold to improve the yield rate of
	    production.

   1.3	Known bugs
	a.  In RS232 and USB mode ,the LDL & RDL function (AT&T3) can't work.
	b.  In USB mode, the "break" signal from DTE can not be detected.
	c.  In USB mode, the modem can not transfer file properly in non-error
            control mode (when the DTE charater format was not 10 bit data
            format.)
	d.  The V.90 mode fail to make connection when connect via A/B port
	    of the "Original a/b adapter" on ZyXEL Elite 2864I.


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



             =================================================
             Release Note for ZyXEL Omni 56K and Omni 56K Plus
             Version 1.00                   September 20, 1999
             =================================================


   1.  Version information:

       Omni 56K Plus:                           Omni 56K:
       --------------                           ---------
       ATI1                                     ATI1
       12389                                    49455
       Omni56K Plus  1.00                       Omni56K 1.00
       1999/9/20 13:41                          1999/9/20 21:09
       OK                                       OK



   1.2  Fixed bugs and function improvement:
	a.  Fixed the V22 compatibility issues with the USR and Lucent modem.
	b.  Improved the stability of  DTMF tone detection in  voice mode.
 	c.  Fixed the bug that connection fail with Rockwell ACF-2 modem in
 	    V.34 mode.

   1.3	Known bugs
	a.  In RS232 and USB mode, the LDL & RDL function (AT&T3) can't work.
	b.  In USB mode, the "break" signal from DTE can not be detected.
	c.  In USB mode, the modem can not transfer file properly in non-error
            control mode (when the DTE charater format was not 10 bit data
            format.)
	d.  The V.90 mode fail to make connection when connect via A/B port
	    of the "Original a/b adapter" on ZyXEL Elite 2864I.


   2.	USB driver & INF file
   ==============================

   2.1	Software description
 	Version:  1.00b
	Version time:  1999/9/9

   2.2	Fixed bugs:
	a.  Add the non echo mode setting after hangup in INF file.
	b.  Fixed the Voice command set.
	c.  Fixed the modem conflict with other ZyXEL USB product.
	d.  Improve the delay time of USB driver.
	e.  Fix the bug that garbage data happen in data flow control
            in USB driver.



   3.	Bitware application
   ========================

   3.1	Software description
	Version: 3.30.14
	Version time: 1999/9/10

   3.2  Fixed bugs
	a.  The menu option of 3-Bit ADPCM with the following sequence
            Voice/setup/voice system setcup/advance/format was wrong.
            The modem only provides 4-bit ADPCM.
	b.  Add the caller ID feature
	c.  Fixed the software flow control in Fax class 1 (AT+FCLASS=1)