36 CFR Part 1194 - Proposed Information and Communication Technology (ICT) Standards and Guidelines NPRM

410.6 Real-Time Text Functionality.

Where ICT provides real-time voice communication, ICT shall support real-time text functionality and shall conform to 410.6.

410.6.1 Display of Real-Time Text.

Where provided, multi-line displays shall be compatible with real-time text systems used on the network.

410.6.2 Text Generation.

Where provided, features capable of text generation shall be compatible with real-time text systems used on the network.

410.6.3 Interoperability.

Where ICT interoperates outside of a closed system of which it is a part, or where ICT connects to other systems, ICT shall conform to 410.6.3.1 or 410.6.3.2.

410.6.3.1 PSTN.

Where ICT interoperates with the Public Switched Telephone Network (PSTN), real-time text shall conform to TIA 825-A (incorporated by reference in Chapter 1).

410.6.3.2 VoIP Using SIP.

Where ICT interoperates with Voice over Internet Protocol (VoIP) products or systems using Session Initiation Protocol (SIP), real-time text shall conform to RFC 4103 (incorporated by reference in Chapter 1).

410.6.4 Voice Mail, Auto-Attendant, and IVR Compatibility.

Where provided, voice mail, auto-attendant, and interactive voice response telecommunications systems shall be compatible with real-time text that conforms to 410.6.3.

410.6.5 HCO and VCO Support.

Real-time voice communication shall permit users to intermix speech with the use of real-time text and shall support modes that are compatible with Hearing Carry Over (HCO) and Voice Carry Over (VCO).