C.1 General

24.2373GPPIP Multimedia (IM) Core Network (CN) subsystem IP Multimedia Subsystem (IMS) service continuityRelease 17Stage 3TS

This subclause describes the media feature tag definitions and the feature-capability indicators definitions that are applicable for the 3GPP IM CN Subsystem for the realisation of the MSC server assisted mid-call feature, Access Transfer Control Function, and PS to CS SRVCC for calls in alerting phase.