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Spec Title Releases WG
29.228IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents18.0.0
17.1.0
16.1.0
15.3.0
14.6.0
13.5.0
12.10.0
11.11.0
10.8.0
9.12.0
8.19.0
7.18.0
6.17.0
5.22.0
C4
29.433TISPAN; IP Multimedia; Diameter based protocol for the interfaces between the Call Session Control Function and the User Profile Server Function/Subscription Locator Function; Signalling flows and protocol details [3GPP TS 29.228 and 29.229 modified]8.1.1
7.0.0
C4

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