C.7 Definition of feature-capability indicator g.3gpp.srvcc

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

Feature-capability indicator name: g.3gpp.srvcc

Summary of the feature indicated by this feature-capability indicator:

This feature-capability indicator when included in a Feature-Caps header field as specified in IETF RFC 6809 [60] of:

– a SIP INVITE request; or

– a SIP INVITE response;

indicates presence and support of a resource capable of performing the PS to CS SRVCC access transfer procedure as specified in 3GPP TS 24.237.

Feature-capability indicator specification reference:

3GPP TS 24.237, http://www.3gpp.org/ftp/Specs/archive/24_series/24.237/

Values appropriate for use with this feature-capability indicator: none

The feature-capability indicator is intended primarily for use in the following applications, protocols, services, or negotiation mechanisms: This feature-capability indicator is most useful in a communications application for indicating that a resource supports single radio voice call continuity.

Examples of typical use: Indicating that a resource supports single radio voice call continuity.

Security Considerations: Security considerations for this feature-capability indicator are discussed in clause 9 of IETF RFC 6809 [60].