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Spec Title Releases WG
24.183IP Multimedia Subsystem (IMS) Customized Ringing Signal (CRS); Protocol specification19.0.0
18.0.0
17.1.0
16.6.0
15.1.0
14.2.0
13.2.0
12.2.0
11.6.0
10.8.0
9.11.0		C1

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