Car Dealer Website 1.18 (by )

arpwatch NG 1.5 (by )

VOCP 0.9.3 (by Psychogenic INC)
Much more than an answering machine, VOCP transforms your computer into a full-featured call answering and voice messaging system

TkVoice 1.5 (by Peter)
TKVOICE is a Telephone Answering Machine(TAM) Frontend for LINUX vgetty

HylaFax 5.0.1 (by Matthias Apitz)
HylaFAX project is an enterprise-class system for sending and receiving facsimiles as well as for sending alpha-numeric pages.

The

mgetty+sendfax 1.1.35 (by Gert Doering)
Mgetty+sendfax is a collection of programs to send and receive faxes in a unix environment using a class 2.0 or 2 (they're different)

fax4CUPS 1.28 (by Sebastiano Vigna)
fax4CUPS is a very simple shell script that acts as a CUPS backend for a serial fax modem