B.2 Definition of media feature tag g.3gpp.ics

24.2923GPPIP Multimedia (IM) Core Network (CN) subsystem Centralized Services (ICS)Release 17Stage 3TS

Media feature-tag name: g.3gpp.ics

ASN.1 Identifier: 1.3.6.1.8.2.6

Summary of the media feature indicated by this tag: This feature-tag when used in a SIP REGISTER request indicates that the function is ICS capability and may operate in ICS mode. This feature-tag when used is a none SIP REGISTER method indicates that the function wants to invoke ICS functionality.

Values appropriate for use with this feature-tag: principal; server.

principal When used in a SIP REGISTER request indicates that the function that is ICS capable is a mobile phone. When used in another SIP method indicates that the function wants to invoke ICS functionality.

server Indicates that the function that is ICS capable is a network node.

The feature-tag is intended primarily for use in the following applications, protocols, services, or negotiation mechanisms: This feature-tag is most useful in a communications application, for describing the capabilities of a device, such as a phone or PDA.

Examples of typical use: Indicating that a mobile phone (principal) can support or wants to use ICS or that a network node (server) wants to invoke ICS functionality

Related standards or documents: 3GPP TS 24.292: "3GPP Technical Specification: IP Multimedia (IM) Core Network (CN) subsystem Centralized Services (ICS); Stage 3"

Security Considerations: Security considerations for this media feature-tag are discussed in subclause 12.1 of IETF RFC 3840 [34].