J.1 Introduction
29.1633GPPInterworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networksTS
This annex describes procedures for interworking Customized Alerting Tone (CAT) between the IMS and CS Networks.
29.1633GPPInterworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networksTS
This annex describes procedures for interworking Customized Alerting Tone (CAT) between the IMS and CS Networks.