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ITU-T Q.2957
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)
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ITU-T I.251.5
ITU-T I.251.5 Number identification supplementary services : Connected Line Identification Presentation (COLP)
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ITU-T I.251.6
ITU-T I.251.6 Number identification supplementary services : Connected Line Identification Restriction (COLR)
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ITU-T I.258.2
ITU-T I.258.2 Mobility and modification supplementary services : In-call modification (IM)
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ITU-T E.104
ITU-T E.104 International telephone directory assistance service and public access
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ITU-T Q.2010
ITU-T Q.2010 Broadband integrated services digital network overview - Signalling capability set 1, release 1
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ITU-T E.109
ITU-T E.109 International billed number screening procedures for collect and third-party calling
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ITU-T Q.2951
ITU-T Q.2951 Stage 3 description for number identification supplementary services using B-ISDN Digital Subscriber Signalling System No. 2 (DSS 2) - Basic call - Clause 1: Direct Dialling-In (DDI); Clause 2: Multiple Subscriber Number (MSN); Clause 3: Calling Line Identification Presentation (CLIP); Clause 4: Calling Line Identification Restriction (CLIR);...
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ITU-T Q.2140
ITU-T Q.2140 B-ISDN ATM adaptation layer - Service specific coordination function for signalling at the network node interface (SSCF at NNI)
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ITU-T Q.76
ITU-T Q.76 Service procedures for universal personal telecommunication - Functional modelling and information flows
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ITU-T Q.2931
ITU-T Q.2931 Digital Subscriber Signalling System No. 2 - User-Network Interface (UNI) layer 3 specification for basic call/connection control
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ITU-T Q.923
ITU-T Q.923 Specification of a synchronization and coordination function for the provision of the OSI connection-mode network service in an ISDN environment
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