ETSI TS 122 088
ETSI TS 122 088
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Call Barring (CB) Supplementary Services - Stage 1 (3GPP TS 22.088 version 4.0.0 Release 4)
standard published 03/01/2001 by European Telecommunications Standards Institute