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TS 24.292 (CT1)
ICS – IMS Centralized Services –
Stage 3

ToC      3GPP‑Page      ETSI‑search      Help       
V15.0.0 (Wzip)    2017/12    184 p.
V14.1.0 (PDF)    2017/06    187 p.
V13.4.0    2016/09    186 p.
V12.10.0    2016/09    185 p.
V11.10.0    2016/09    182 p.
V10.16.0    2016/09    180 p.
V9.19.0    2016/09    179 p.
V8.21.0    2016/09    153 p.

Rapporteur:  Mr. Sedlacek, Ivo
See also:  ICS-related TS/TR    

IP Multimedia (IM) Core Network (CN) subsystem centralized services (ICS) allow for the delivery of consistent IMS services to the user regardless of the attached access type (e.g. CS domain access or IP-CAN).

This TS provides the protocol details for the realization of ICS based on the Session Initiation protocol (SIP), the Session Description Protocol (SDP), the I1 protocol, and the protocols of the 3GPP Circuit-Switched (CS) domain (e.g. CAP, MAP, ISUP, BICC and the NAS call control protocol for the CS access).

This document makes no ICS specific enhancements to SIP or SDP beyond those specified in TS 24.229. It is applicable to User Equipment (UEs), MSC Servers and Application Servers (AS) providing ICS capabilities.

for V15:    (B) Avoid unnecessary failed call   |   (F) MSC server using P-Called-Party-ID for PAI


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