PCTTY is a Windows computer program that sends and receives baudot TTY phone calls through a data/fax/voice modem and also, with the aid of a SIP Tapi TSP, through IP Telephony.
PCTTY v1.84 also has DTMF tone capability for interaction with Interactive Voice Response (IVR) systems. Simply hold down the CONTROL key and strike a number key (or # and *) at the same time, and a DTMF tone will be issued from the PCTTY program.
PCTTY v1.84 now has big text support. Outgoing text is lowercase red and Incomming text is uppercase black. Text is now sizeable so that short of sight people can use PCTTY as well.
PCTTY v1.84 now capable of SIP 2.0 IP Telephony when the ComISDN TAPI TSP is installed and configured. Go here to find out more.
On Windows 98 and Windows ME a wave modem driver must be installed along with the regular modem driver. This wave modem driver is normally installed on modem installation time. On Windows 2K and XP an audio device needs to be installed with the modem at installation time. This audio device normally installs correctly for plug and play modems. See the FAQ for more help on this.
The PCTTY program is freeware.
PCTTY is perfect for the friend or family member of a deaf person who has a TTY machine. With this program they can communicate with their deaf friend or relative and save the cost of a TTY. With the "Echo On" feature the other side of the phone call can be relayed to the computer's speakers. This makes it easy for hearing people to understand what is happening on the other end of the phone, whether it is ringing or busy or if a person or tty answers the call.
The TTY was created in the early 60s by deaf physicist Robert Weitbrecht. A chapter in the book "Silence of the Spheres: The Deaf Experience in the History of Science" published by Bergin & Garvey deals with his great achievement.
Enjoy PCTTY and drop me a line about how it works.