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ITU-T Q.953.3 Stage 3 description for call completion supplementary services using DSS 1 : Completion of calls to busy subscribers (CCBS)
ITU-T Q.2931 AMD 1 Q.2931 (1995) Amendment 1
ITU-T Q.2955.1 Stage 3 description for community of interest supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSS2): Closed User Group (CUG)
ITU-T Q.81.7 Stage 2 description for number identification supplementary services : Malicious call identification (MCID)
ITU-T Q.2961.2 Digital subscriber signalling system No. 2 - Additional traffic parameters : Support of ATM Transfer capability in the broadband bearer capability information element
ITU-T Q.733.3 Stage 3 description for call completion supplementary services using Signalling System No. 7 : Completion of calls to busy subscriber (CCBS)
ITU-T Q.737.1 Stage 3 description for additional information transfer supplementary services using Signalling System No. 7 : User-to-user signalling (UUS)
ITU-T Q.784.2 ISUP basic call test specification: Abstract test suite for ISUP'92 basic call control procedures
ITU-T D.232 Specific tariff and accounting principles applicable to ISDN supplementary services
ITU-T E.491 Traffic measurement by destination
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