Search for a 3GPP Specification (number and/or title):  

Download results in JSON format

Spec Title Releases WG
29.163Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks18.0.0
17.3.0
16.4.0
15.8.0
14.13.0
13.13.0
12.16.0
11.19.0
10.22.0
9.26.0
8.32.0
7.28.0
6.12.1
1.9.0
C3
29.427TISPAN; Endorsement of the SIP-ISUP Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched CS) networks [3GPP TS 29.163 (Release 7), modified]7.1.0C3
29.527TISPAN; Endorsement of the SIP-ISUP Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks [3GPP TS 29.163 (Release 7), modified]8.3.0C3

All information on this page is aggregated from the 3GPP Specfication Status Report page.