UNE-EN 301347 V6.7.1:2021
Digital cellular telecommunications system (Phase 2+) (GSM);General Packet Radio Service (GPRS);GPRS Tunnelling Protocol (GTP) across the Gn and Gp Interface (GSM 09.60 version 6.7.1 Release 1997) (Endorsed by Asociación Española de Normalización in...