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ITU-T S.34 Intex terminals - Requirements to effect interworking with the international telex service
ITU-T T.82 Information technology - Coded representation of picture and audio information - Progressive bi-level image compression
ITU-T G Supplement 31 Principles of determining an impedance strategy for the local network
ITU-T Q.542 Digital exchange design objectives - Operations and maintenance
ITU-T Q.667 Interworking of signalling systems - Logic procedures for interworking of signalling system no. 7 (TUP) to signalling system no. 7 (ISUP)