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ITU-T Q.2957.1 Stage 3 description for additional information transfer supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSS2) - Basic call : User-to-user signalling (UUS)
ITU-T F.16 Global virtual network service
ITU-T F.851 Universal Personal Telecommunication (UPT) - Service description (Service set 1)
ITU-T F.115 Service objectives and principles for future public land mobile telecommunication systems
ITU-T F.813 Virtual path service for reserved and permanent communications
ITU-T Q.2120 B-ISDN meta-signalling protocol
ITU-T Q.2957 Stage 3 description for additional information transfer supplementary services using B-ISDN Digital Signalling System No. 2 (DSS 2) - Basic call - Clause 1: User-to-user signalling (UUS)
ITU-T Q.85.6 Stage 2 description for community of interest supplementary services : Global Virtual Network Service (GVNS)
ITU-T I.251.5 Number identification supplementary services : Connected Line Identification Presentation (COLP)
ITU-T I.251.6 Number identification supplementary services : Connected Line Identification Restriction (COLR)
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