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ITU-T Q.601 to Q.695 Annex A Lists and meanings of FITEs, BITEs and SPITEs - Representation of information contents of signals of the signalling systems
ITU-T Q.734.1 Stage 3 description for multiparty supplementary services using Signalling System No. 7 : Conference calling
ITU-T Q.735 Stage 3 description for community of interest supplementary services using signalling system no. 7; Clause 1: Closed User Group (CUG); Clause 3: Multilevel precedence and preemption
ITU-T Q.82.2 Stage 2 description for call offering supplementary services : Call forwarding
ITU-T Q.82.3 Stage 2 description for call offering supplementary services: Call deflection
ITU-T Q.733.2 Stage 3 description for call completion supplementary services using Signalling System No. 7 : Call hold (HOLD)
ITU-T Q.723 AMD 1 Q.723 (1988) Amendment 1
ITU-T Q.724 AMD 1 Q.724 (1988) Amendment 1
ITU-T Q.951.6 Stage 3 description for number identification supplementary services using DSS 1 : Connected line identification restriction
ITU-T Q.921bis Test suite Abstract test suite for LAPD conformance testing - Part I: Basic rate user side
ITU-T Q.731.3 Stage 3 description for number identification supplementary services using signalling system no. 7; Clause 3: Calling Line Identification Presentation (CLIP); Clause 4: Calling Line Identification Restriction (CLIR); Clause 5: Connected Line Identification Presentation (COLP); Clause 6: Connected Line Identification Restriction (COLR)
ITU-T Q.951.3 Stage 3 description for number identification supplementary services using DSS 1 : Calling line identification presentation