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ETSI TR 123 039
M00001988
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ETSI TR 123 039 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Interface protocols for the connection of Short Message Service Centres (SMSCs) to Short Message Entities (SMEs) (3G TR 23.039 version 3.1.0 Release 1999)
standard by European Telecommunications Standards Institute, 01/01/2000
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