ETSI TS 123 053
ETSI TS 123 053
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Tandem Free Operation (TFO); Service description; Stage 2 (3GPP TS 23.053 version 4.0.1 Release 4)
standard published 08/01/2001 by European Telecommunications Standards Institute
