3G-324M

3G-324M is the 3GPP umbrella protocol for video telephony in 3G mobile networks.
The 3G-324M protocol operates over an established circuit switched connection between two
communicating peers. 3G-324M is an umbrella specification to enable conversational multimedia
communication over Circuit Switched (CS) networks and has been adopted by the 3GPP. 3G-324M is based on the ITU-T H.324 specification for multimedia conferencing over Circuit switched networks. 3G-324M is composed of the following sub-protocols:
The 3G-324M specification using the Circuit switched network allows delay sensitive conversational multimedia services such as:
3G-324M is agnostic to the actual Circuit switched network that uses it. It can run as easily over UMTS as well as TD-SCDMA networks.
3G-324M is a proven solution for conversational multimedia based services that packet-based wireless networks cannot deliver because of inherent overhead, BER sensitivity, and variant routing delays. 3G-324M operating over a circuit switched channel between two communication peers guarantees the fixed-delay quality of service for multimedia communications. Combining Circuit switched 3G-324M services with packet-based SIP services such as presence can leverage the strength of both networks to enable new types of differentiated and innovative mobile 3G services.
Codecs.
Audio Codec
Video Codec