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2 specifications found, displaying 1 to 2
Specification NumberTypeTitleStatusPrimary Responsible Group 
24.173TSIMS Multimedia telephony communication service and supplementary services; Stage 3Under change control C1
See details Internal Common IMS 2G 3G LTE 5G
24.183TSIP Multimedia Subsystem (IMS) Customized Ringing Signal (CRS); Protocol specificationUnder change control C1
See details Internal Common IMS 2G 3G LTE 5G