WinModems and Linux

Support knowledgebase (cep_winmodem)

Symptom:

Your modem is not recognized in Linux or one or more of the following conditions match:

Cause:

The modem is a WinModem, which is not controlled by a serial port. The digital signal processor (DSP) on the board must be controlled directly by the main CPU.

There are well-defined command sets for modems, standardized by ITU (International Telecommunications Union, www.itu.ch) and TIA (Telecommunications Industry Association, www.tiaonline.org). The standards ITU V.250 and TIA/EIA 602 define the command set for a modem. The command sets have the ancient names: Hayes command set or AT command set.

Linux is able to handle modems complying with the standards mentioned above. WinModems do not comply with these standards and their interface details are not disclosed frequently.

A long list of modems including information about availability of drivers for Linux can be found under
http://www.linmodems.org/

Solution:


See also:
o HylaFAX: No regular expression for modem class

Keywords: MODEM, WINDOWS, WINMODEM, AT, COMMAND_SET, V.250, TIA.602, V.25.TER

Categories: Hardware

SDB-cep_winmodem, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 23. Feb 1999
SuSE Linux AG - Last generated: 09. Oct 2002 by sdb (sdb_gen 1.40.0)