IR.92 defines a voice over IMS profile by listing number of Evolved Universal Terrestrial Radio Access Network, evolved packet core, IMS core, and UE features which are considered essential to launch interoperable IMS based voice services.
IR.92 defines a voice over IMS profile by listing number of Evolved Universal Terrestrial Radio Access Network, evolved packet core, IMS core, and UE features which are considered essential to launch interoperable IMS based voice services.