WHAT IS IPTTY?
ipTTY is a software application that resides on a user's PC and is designed for individuals who are deaf or hard of hearing and/or who wish to communicate with customers who use TTY/TDD machines. The program communicates through IP and uses standard session initiation protocol (SIP). ipTTY enables virtually every user on your telephony network to communicate with customer TTY machines or the Text Relay Service (TRS), without the need for expensive analog lines or FXS gateways. Additionally, ipTTY supports audio for hearing and voice carry-over and real-time-text via RFC 4103: the future in real time text communications.