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ITU-T X.33 Access to packet-switched data transmission services via frame relaying data transmission services
ITU-T E.774 Network grade of service parameters and target values for maritime and aeronautical mobile services
ITU-T D.212 Charging and accounting principles for the use of Signalling System No. 7
ITU-T E.734 Methods for allocating and dimensioning Intelligent Network (IN) resources
ITU-T E.744 Traffic and congestion control requirements for SS No. 7 and IN-structured networks
ITU-T X.34 Access to packet-switched data transmission services via B-ISDN
ITU-T E.752 Reference connections for traffic engineering of maritime and aeronautical systems
ITU-T X.625 Information technology - Protocol for providing the connectionless-mode Network service: Provision of the underlying service by ISDN circuit-switched B-channels