ETSI TR 123 039
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 published 01/01/2000 by European Telecommunications Standards Institute