ETSI TS 101 299
ETSI TS 101 299
Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Base Station System (BSS) - Serving GPRS Support Node (SGSN) interface; Network Service (GSM 08.16 version 6.2.0 Release 1997)
standard published 04/01/1999 by European Telecommunications Standards Institute