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TIA-873.002 Revision B, June 1, 2009 All-IP Core Network Multimedia Domain; IP Multimedia Subsystem – Stage 2
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Description / Abstract: This document defines the stage-2 service description for the IP Multimedia Core Network Subsystem (IMS), which includes the elements necessary to support IP Multimedia (IM) services. ITU-T Recommendation I.130 [4] describes a three-stage method for characterisation of telecommunication services, and ITU-T Recommendation Q.65 [3] defines stage 2 of the method.
This document does not cover the Access Network functionality or IP Connectivity Access Network aspects except as they relate to provision of IM services. These aspects are covered in the normative Annex E.
This document identifies the mechanisms to enable support for IP multimedia applications. In order to align IP multimedia applications wherever possible with non-IMS IP applications, the general approach is to adopt non- IMS specific IP based solutions.
This document does not cover the Access Network functionality or IP Connectivity Access Network aspects except as they relate to provision of IM services. These aspects are covered in the normative Annex E.
This document identifies the mechanisms to enable support for IP multimedia applications. In order to align IP multimedia applications wherever possible with non-IMS IP applications, the general approach is to adopt non- IMS specific IP based solutions.