ETSI TS 122 002
ETSI TS 122 002
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Circuit Bearer Services (BS) supported by a Public Land Mobile Network (PLMN) (3G TS 22.002 version 3.2.0 Release 1999)
standard published 01/01/2000 by European Telecommunications Standards Institute