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ITU-T E.135 Human factors aspects of public telecommunication terminals for people with disabilities
ITU-T Q Supplement 1 Signalling System No.7 testing and planning tools
ITU-T Q.736.1 Stage 3 description for charging supplementary services using Signalling System No. 7 : International Telecommunication Charge Card (ITCC)
ITU-T Q.751.1 Network element management information model for the Message Transfer Part (MTP)
ITU-T Q.86.7 Stage 2 description for charging supplementary services : International Telecommunication Charge Card (ITCC)
ITU-T Q.1303 Telecommunication applications for switches and computers (TASC) - TASC Management: Architecture, methodology and requirements
ITU-T Q.824.0 Stage 2 and stage 3 description for the Q3 interface - Customer administration : Common information
ITU-T Q.824.3 Stage 2 and stage 3 description for the Q3 interface - Customer administration : Integrated Services Digital Network (ISDN) optional user facilities
ITU-T Q.933bis Abstract test suite - Signalling specification for frame mode basic call control conformance testing for permanent virtual connections (PVCs)
ITU-T Q.953.4 Stage 3 description for call completion supplementary services using DSS 1 : Terminal Portability (TP)
ITU-T Q.1210 Q.1210-series intelligent network Recommendation structure
ITU-T Q.824.2 Stage 2 and stage 3 description for the Q3 interface - Customer administration : Integrated Services Digital Network (ISDN) supplementary services