* * * modem characteristics * * *

BZT modem
- do not work with 'ATZ' as init-string
  use only 'AT'

- DTE-speed: many modem work only with 19200 baud in fax-mode

**************************** ZyXEL **************************************
ZyXEL
- firmware 6.12 makes mistakes with 1496E if fax is received with 14400 bps
  1496 EG and E+ or EG+ work without mistakes
- Firmware 6.13 ADCPM3 playback without sync does not work with 1496E

ZyXEL Elite ID
- For fax-on-demand the 'No Dial'-String has to be 'ATX1A'
Firmware 2.03/1.12:  crashes often
Firmware 2.04/1.13a: crashes sometimes
Firmware 2.05/1.14:  crashes sometimes
Firmware 2.05b/1.14: seems to be ok
Firmware 2.07/1.14:  seems to be ok
Firmware 2.07a/1.14: seems to be ok
Firmware 2.08/1.16:  seems to be ok
Firmware 2.09/1.16:  seems to be ok
Firmware 2.10/1.16:  seems to be ok
Firmware 2.11/1.16f: crashes
Firmware 2.12/1.16f: seems to be ok
Firmware 2.99i/2.00: seems to be ok

**************************** Dr. Neuhaus *********************************
Smarty (R) 19.2 TI DNE 1126V.0.00.0622 Voice
- bad quality in ADCPM 2 and 3
- no play forward or play back of voice messages in these modi
- modem occures 'error' sometimes with 'ATV1'
- in voice mode the call can not be put back to the telephone
- when a message is played, no fax, data, or DTMF tones can be recognized

Dr. Neuhaus Cybermod 28.8/33.6
- Has no internal microphone. Please convert AIFF/WAVE-files with CoMa

****************************** 1&1 ************************************
Creatix LC144VF
- firmware 1.4 has many mistakes, no data-connect in voice-mode, bad
  regognition of fax-calling-tone, no silence recognition even in firmware
  1.5

********************************* Elsa/TKR *****************************  
TKR TriStar, firmware 1.06
- DTMF tone 1 and 4 are not recognized
- no silence is recognized (same as creatix!)
- some frequency can not be created (512...555Hz, 768...811Hz and so on)

Elsa MicroLink 28.8 TQV
With firmware 1.19 the voice-mode does'nt work correctly - use firmware 1.16 !
1.23 has many problems, 1.24 seems to be ok

Elsa MicroLink ISDN/TL V.34
- Has no internal microphone.
- For fax-on-demand the 'No Dial'-String has to be 'ATX1A'
- combinaton of voice&fax-receiving only works with DTE-speed 19200&38400
Firmware 1.57J:  sending faxes with 230400 bps causes errors ; with 115200 no problem
Firmware 2.10J:  sending faxes with 230400 bps causes errors ; with 115200 no problem
Firmware 2.20J:  seems to be ok.
Firmware 2.27J:  seems to be ok.
Firmware 2.40J:  seems to be ok.
Firmware 3.00J:  seems to be ok.

Elsa MicroLink Office
Firmware 1.11:  seems to be ok.

*************************** US Robotics *******************************
US Robotics/Courier
- for automatic receive 'count rings' must be set, because S1-register does'nt work

Sportster Vi  Supervisor date: 13.10.95 / V 6.1.5  DSP date: 12.10.95 / V 1.2.5
- The end of the outgoing-message with DTE-Speed > 19200 is cut
- Data-calling-tone is not recognize
- fac-connection mostly fails
- All peep-tones have the same frequency
- redirect incoming-message is not possible

Sportster Flash 56000 Rev. 10.1.29
- fax-polling does'nt work

USR Courier ISDN:
Firmware 1.5.3: 230400 bps does'nt work. MSN-functions only with FW 2.1.7
Firmware 2.1.7:  

USR 56K Pro Message Modem 
Firmware 12.2.5: Polling doesn«t work

***************************** Lasat ********************************
unique 1280mi
set register S95=47

Firmware 1.22: loss of Parts voice-play-parts at DTE-Speed 115200 
               ATS1? does'nt report the number of rings, instead the modem goes off-hook :-(
               AT#VTS does'nt work - always the same frequency
               ISDN-connect in voice-mode is not possible
               Recall of the MSNs is not possible

*************************** Wildner ********************************
kik by Wildner Firmware 1.500-V34_DS: 
- with setting Fax%Data Data-Connect doesn't work
- fax only works with DTE-Speed 19200
                                      
********************** Blatzheim BM 33k6/ISDN *************************
Firmware 2.60:
Faxen works only sometimes
Modem crashes if caller hangs up during record(this happens most)

               
************************ Sonstiges ***********************************
Motorola 3400
this moden is unusable to fax, because it supports no fax-class 2 and no 2.0 :-(