ETSI TS 122 079
ETSI TS 122 079
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Optimal Routeing (SOR); Service definition - Stage 1 (3G TS 22.079 version 3.0.1 Release 1999)
standard published 01/01/2000 by European Telecommunications Standards Institute