My TTY 3.0 TTY Software
MyTTY is a computer program that enables a PC to communicate with TTYs using Baudot code. Instead of buying a TTY or a software that requires special TTY modems, save money with MyTTY. Virtually any voice modem with good voice quality can be used with MyTTY.
More information: http://www.idrt.com/store/mytty-3-0