ETSI TS 101 346
ETSI TS 101 346
Digital cellular telecommunications system (Phase 2+); General Packet Radio Service (GPRS); Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR); Gs interface layer 3 specification (3GPP TS 09.18 version 6.7.0 Release 1997)
standard published 12/01/2001 by European Telecommunications Standards Institute
