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Linux Hardware Compatibility HOWTO: Modems Next Previous Contents

20. Modems

All internal modems or external modems connected to the serial port should work. Alas, some manufactures have created Windows 95 only modems. Check Appendix E for Linux incompatible hardware. Furthermore, many flash upgradable modems only have flash programs for Win95/NT. These modems cannot be upgraded under Linux.

A small number of modems come with DOS software that downloads the control program at runtime. These can normally be used by loading the program under DOS and doing a warm boot. Such modems are probably best avoided as you won't be able to use them with non PC hardware in the future.

All PCMCIA modems should work with the PCMCIA drivers.

Fax modems need appropriated fax software to operate. Also be sure that the fax part of the modem supports Class 2 or Class 2.0. It seems to be generally true for any fax software on unix that support for Class 1.0 is not available.

An exception to this is the Linux efax program which supports both Class 1 and Class 2 fax modems. In some cases there can be a few (minor) technical problems with Class 1 modems. If you have a choice it is recommend to get a Class 2 modem.

  • Digicom Connection 96+/14.4+ - DSP code downloading program
    ftp://metalab.unc.edu/pub/Linux/apps/serialcomm/smdl-linux.1.02.tar.gz
  • Motorola ModemSURFR internal 56K. Add a couple of line to RC.SERIAL to account for IRQ and ports if they are non-standard.
  • ZyXEL U-1496 series - ZyXEL 1.4, modem/fax/voice control program
    http://www.pe1chl.demon.nl/ZyXEL/ZyXEL-1.6.tar.gz
  • ZyXEL Elite 2864 series - modem/fax/voice control program
    http://www.pe1chl.demon.nl/ZyXEL/ZyXEL-1.6.tar.gz
  • ZyXEL Omni TA 128 - modem/fax/voice control program
    http://www.pe1chl.demon.nl/ZyXEL/ZyXEL-1.6.tar.gz

Also multimodem cards are supported by Linux.

  • Moreton Bay RAStel multimodem card
    Check http://www.moreton.com.au/linux.htm for Linux drivers.

The following modem is mentioned not to be supported

  • Aztech MDP3858 56.6 (PCI)

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