ITU-T T.0 Classification of facsimile terminals for document transmission over the public networks
ITU-T D.155 Guiding principles governing the apportionment of accounting rates in intercontinental telephone relations
ITU-T D.91 Transmission in encoded form of maritime telecommunications accounting information
ITU-T F.163 Operational requirements of the interconnection of facsimile store-and-forward units
ITU-T F.162 Service and operational requirements of store-and-forward facsimile service
ITU-T F.110 Operational provisions for the maritime mobile service
ITU-T Q.957.1 Stage 3 description for additional information transfer supplementary services using DSS 1 : User-to-user signalling (UUS)
ITU-T Q.2210 Message transfer part level 3 functions and messages using the services of ITU-T Recommendation Q.2140