DVC ITU Standards

• High speed telephone/ISDN (128Kbps+) - H.320, H.261, G.711

• Low speed telephone (28.8Kbps+) - H.324, H.263, G.723.1 speech

• LAN - H.323, H.261, H.263, H.263+

• Applications - T.120, T.128

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The different standards are intended to address different situations.