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ITU-T U.204 Interworking between the international telex service and the public interpersonal messaging service
ITU-T T.62bis Control procedures for teletex and G4 facsimile services based on Recommendations X.215 and X.225
ITU-T T.501 Document application profile MM for the interchange of formatted mixed mode documents
ITU-T T.412 Information technology - Open Document Architecture (ODA) and interchange format - Document structures
ITU-T D Supplement 3 Handbook on the methodology for determining costs and establishing national tariffs
ITU-T I.411 (03/93) ISDN user-network interfaces; reference configuration
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