Implementation guidelines for Multiparty RTT
The present document provides the protocol details for the Multiparty Real-Time Text (Multiparty RTT) service in the IP Multimedia (IM) Core Network (CN) subsystem based on the requirements from 3GPP TS 22.173 [2].
The Multiparty RTT service is an operator specific service by which an operator enables the subscribers in conference to use real-time text during the conference session.
The present document is applicable to User Equipment (UE) and Application Servers (AS) which are intended to support the Multiparty RTT service.