ITU-T H.460.11-2004 Delayed Call Establishment within H.323 Systems SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services Supplementary services for multimedia Study Group 16
This Recommendation defines procedures to provide for delayed call establishment (delayed
ringing) functionality within the context of ITU-T Rec. H.323. Delayed call establishment may be
used to place a call, query capabilities, perform testing, or perf
ITU-T H.460.11-2004 history
2004ITU-T H.460.11-2004 Delayed Call Establishment within H.323 Systems SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services Supplementary services for multimedia Study Group 16