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ETSI TS 123 334
M00000644
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ETSI TS 123 334 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) Application Level Gateway (IMS-ALG) - IMS Access Gateway (IMS-AGW) interface: Procedures descriptions (3GPP TS 23.334 version 16.1.0 Release 16)
standard by European Telecommunications Standards Institute, 11/01/2020
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