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3 specifications found, displaying 1 to 3
Specification NumberTypeTitleStatusPrimary Responsible Group 
22.228TSService requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1Under change control S1
See details Internal Common IMS 2G 3G LTE 5G
23.203TSPolicy and charging control architectureUnder change control S2
See details Internal Common IMS 2G 3G LTE 5G
23.228TSIP Multimedia Subsystem (IMS); Stage 2Under change control S2
See details Internal Common IMS 2G 3G LTE 5G