The device file describes a fax line and its associated fax modem. The name of the file is arbitrary. If a parameter value contains white space, it must be quoted.
All parameters are optional unless otherwise noted.
It specifies the additional non-standard subscriber information supported by some fax devices. The only value currently supported by Faximum on this operating system is eia593 . This sets the speed to be used after switching to fax mode. Speeds less than 19200 baud may cause fax modem buffer overflow on receive and are not recommended. There is rarely any reason to change this from the original default setting of 19200.