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ITU-T J.261 Framework for...
ITU-R M.1730-1 Characteristics of and...
ITU-T D.307R Remuneration of digital systems and channels used in telecommunication relations between the countries of Europe and the Mediterranean Basin
ITU-T D.280 Principles for charging and billing, accounting and reimbursements for universal personal telecommunication
ITU-T D.36 General accounting principles applicable to message handling services and associated applications
ITU-T D.90 Charging, billing, international accounting and settlement in the maritime mobile service
ITU-T I.376 ISDN network capabilities for the support of the teleaction service
ITU-T T.82 Corrigendum 1 T.82 (1993) Technical Cor. 1
ITU-T Q.512 Digital exchange interfaces for subscriber access
ITU-T F.910 Procedures for designing, evaluating and selecting symbols, pictograms and icons
ITU-T Q.1400 ADD 1 Architecture framework for the development of signalling and OAM protocols using OSI concepts
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)