ETSI TS 124 008

Digital cellular telecommunications system (Phase 2 ) (GSM); Universal Mobile Telecommunications System (UMTS); Mobile radio interface layer 3 specification; Core Network Protocols - Stage 3 (3GPP TS 24.008 version 3.7.0 Release 1999) Edition: 3.7.0
European Telecommunications Standards Institute / 01-Mar-2001 / 441 pages