C.9A Definition of feature-capability indicator g.3gpp.cs2ps-srvcc

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

Feature-capability indicator name: g.3gpp.cs2ps-srvcc

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

This feature-capability indicator when included in Feature-Caps header field as specified in IETF RFC 6809 [60] indicates support of the CS to PS single radio voice call continuity 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 or string with an equality relationship

When the value is string, the value contains the session transfer identifier for CS to PS SRVCC and follows the syntax as described in table C.9A-1 for g.3gpp.cs2ps-srvcc-value.

Table C.9A-1: ABNF syntax of string values of the g.3gpp.cs2ps-srvcc feature-capability indicator

g.3gpp.cs2ps-srvcc-value = STI-rSR

STI-rSR = "<" addr-spec ">"

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

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