ETSI TS 122 034
ETSI TS 122 034
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); High Speed Circuit Switched Data (HSCSD) - Stage 1 (3G TS 22.034 version 3.1.0 Release 1999)
standard published 01/01/2000 by European Telecommunications Standards Institute