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M00002735
New product
ETSI TS 124 229
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.229 version 14.4.0 Release 14)standard by European Telecommunications Standards Institute, 07/01/2017
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