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

Download results in JSON format

Spec	Title	Releases	WG
22.228	Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1	18.0.1 17.1.0 16.1.0 15.3.0 14.1.0 13.3.0 12.10.0 11.6.0 10.5.0 9.4.0 8.7.0 7.6.0 6.11.0 5.7.0	S1

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