Framework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)

Keywords: text telephone; textphone; deaf; hard of hearing; speech-impaired; interactive text; transcoding; speech-to-text; user alerting; emergency services; gateway; analog terminal adapters; PSTN interworking; text presentation; user alerting; instant messaging; conversation; conversational text; interactivity; total conversation; user requirements; text gateway; Relay; relay service; text relay; TTY; text transport; text interworking; combination gateway