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Spec	Title	Releases	WG
22.183	Customized Ringing Signal (CRS) requirements; Stage 1	18.0.1 17.0.0 16.0.0 15.0.0 14.0.0 13.0.0 12.0.0 11.0.0 10.0.0 9.1.0	S1

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