Adding and configuring modems

Guidelines for non-supported modems

When configuring non-supported modems:

You may need to disable or reduce the level of data compression and error correction when using a modem for UUCP. If throughput seems too low, or you have failed transfers, disable these features.
Disable XON/XOFF flow control when using the modem for UUCP. The stop character (XOFF or DC3) can occur in the UUCP protocol data stream, and cause the transfer to fail. XON/XOFF passthrough mode may be usable.
Use ``Setting hardware flow control'' with your modem.

If you want to enable XON/XOFF when using the modem for cu(1bnu), you must define an alternative dialer to that used with UUCP. This can be done by modifying and renaming the Dialers file entry, or by modifying and renaming the dialer program, such that you have one dialer definition for UUCP and another for cu. See the Sysfiles(4bnu) manual page for instructions.