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<br />Standard Protocols <br /> <br />International Telecommunication Union - Telecommunication Standardization Sector (ITU- T) <br /> <br />H.221 <br /> <br />Frame structure for a 64 to 1920 kbit/s channel in audiovisual <br />teleservices <br />A real time control protocol for simplex applications using the <br />H.221 LSD/HSD/MLP channels <br />Frame-synchronous control and indication signals for audiovisual <br />systems <br />Multipoint control units for audiovisual systems using digital <br />channels up to 1920 kbit/s <br />System for establishing communication between audiovisual <br />terminals using digital channels up to 2 Mbit/s <br />Procedures for establishing communication between three or more <br />audiovisual terminals using digital channels up to 1920 kbit/s <br />Video CODEC for audiovisual services at p x 64 kbit/s <br />Video coding for low bit rate communication <br />A far end camera control protocol for videoconferences using <br />H.224 <br />Narrow-band visual telephone systems and terminal equipment <br />Packet-based multimedia communications systems <br />Pulse code modulation (PCM) of voice frequencies <br />7 kHz audio-coding within 64 kbit/s <br />Coding of speech at 16 kbit/s using low-delay code excited linear <br />prediction <br />Data protocols for multimedia conferencing <br /> <br />H.224 <br /> <br />H.230 <br /> <br />H.231 <br /> <br />H.242 <br /> <br />H.243 <br /> <br />H.261 <br />H.263 <br />H.281 <br /> <br />H.320 <br />H.323 <br />G.711 <br />G.722 <br />G.728 <br /> <br />T.120 <br /> <br />Copies may be obtained from: <br />International Telecommunication Union <br />List of lTU-T Recommendations <br />\VW\V. itu. i nt/publications <br /> <br />In systems where equipment of different manufacturers is proposed, the Contractor is responsible <br />for insuring the compatibility of the equipment to be purchased, including any required tests or <br />demonstrations. <br /> <br />The teleconferencing equipment covered by this specification shall be supplied with all essary <br />software and AC power cord. The Contractor shall provide the Customer with any assistance <br />required in selecting the essary equipment, options, and accessories needed to configure <br />teleconference systems meeting user needs. <br /> <br />{( <br /> <br />/ <br />