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DiffServ (Differentiated Services): IETF's architecture for scalable services differentiation in the Internet

H.230: ITU-T standard provides frame-synchronous control and indication signals for audiovisual systems

H.234: ITU-T standard for delivering encryption key management and authentication system for audiovisual services

H.323: ITU-T's packet-based multimedia communications system for IP telephony

ITU-T's terminal for low-bit-rate multimedia communication

H.324: Point-to-point protocol between cache servers and network-based applications

ICAP (Internet Content Adaptation Protocol): IETF's model to transport audio, video, real-time and traditional data within a single architecture

MEGACO/H.248: IntServ (Internet Services): IETF and ITU-T proscribed protocol requirements for the MGCP between a Media Gateway Controller and a Media Gateway

MGCP (Media Gateway Control Protocol): IETF API and protocol for controlling VoIP gateways from external calls

MPEG-1, -2, -4: Standards for the compression of digital audio and video

MPLS (Multiprotocol Label Switching): IETF solution for integrating label-swapping QoS framework with network routing

RSVP (Resource Reservation Protocol): IETF protocol for Internet services

RTP (Realtime Transport Protocol): IETF communication protocol for real-time transport of audio and video over IP

SIP (Session Initiation Protocol): IETF's text-based protocol to initiate interactive communications between users

T.120: ITU-T's data protocol for multimedia conferencing

WCCP v.2: Cisco's communication protocol for cache servers