ITU-T H.231 SPANISH-1997
采用高达1920 kbit/s的数字信道的视听系统的多点控制单元.16号研究组

Multipoint control units for audiovisual systems using digital channels up to 1920 kbit/s Study Group 16

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标准号

ITU-T H.231 SPANISH-1997

发布

1997年

发布单位

国际电信联盟

 

 

引用标准

ITU-T G.711-1988 ITU-T G.722-1988 ITU-T G.728-1992 ITU-T H.221-1997 ITU-T H.224-1995 ITU-T H.230-1997 ITU-T H.233-1995 ITU-T H.234-1994 ITU-T H.242-1997 ITU-T H.243-1997 ITU-T H.320-1997 ITU-T T.112-1993 ITU-T T.123-1996 ITU-T T.124-1995 ITU-T T.125-1994

适用范围

This Recommendation specifies the means by which three or more audiovisual terminals conforming to Recommendations H.320, H.221, H.242, H.261, H.262 and H.263 may communicate simultaneously over constant bit rate digital paths, such communication being designated a "multipoint call". The terminals should not need any modification for multipoint working, though some optional enhancements may require additional software; in particular, considerably enhanced functionality is attained via the use of T.120 protocols in the MLP channel. The interconnection is effected by one or more Multipoint Control Units (MCU) which may reside in the network or at one of the terminals.

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