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Spec	Title	Releases	WG
29.281	General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)	18.1.0 17.4.0 16.2.0 15.7.0 14.1.0 13.3.0 12.1.0 11.6.0 10.3.0 9.3.0 8.5.0	C4

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