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ITU-T Q.656 Interworking of signalling systems - Logic procedures for interworking of signalling system no. 6 to signalling system no. 7 (ISUP)
ITU-T Q.694 Logic procedures for interworking of signalling system No. 7 (ISUP) to R1
ITU-T Q.695 Interworking of signalling systems - Logic procedures for interworking of signalling system no. 7 (ISUP) to R2
ITU-T Q.701 Functional description of the Message Transfer Part (MTP) of signalling system no. 7
ITU-T Q.706 Signalling system no. 7 - Message transfer part signalling performance
ITU-T Q.709 Signalling system no. 7 - Hypothetical signalling reference connection
ITU-T Q.941 Digital Subscriber Signalling System no. 1 (DSS 1) - ISDN user-network interface protocol profile for management
ITU-T Q.1152 Procedures for interworking between INMARSAT aeronautical mobile satellite system and the international public switched telephone network/ISDN
ITU-T Q.1111 Interfaces between the INMARSAT standard B system and the international public switched telephone network/ISDN