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Spec	Title	Releases	WG
26.102	Mandatory speech codec; Adaptive Multi-Rate (AMR) speech codec; Interface to Iu, Uu and Nb	18.0.0 17.0.0 16.0.0 15.0.0 14.0.0 13.0.0 12.0.0 11.0.0 10.0.0 9.2.0 8.5.0 7.1.0 6.0.0 5.2.0 4.1.0 3.4.0	S4

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