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ETSI TS 129 328
M00005117
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ETSI TS 129 328 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS) Sh interface; Signalling flows and message contents (3GPP TS 29.328 version 5.16.0 Release 5)
standard by European Telecommunications Standards Institute, 10/01/2009
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