UNE-EN 301349V6.6.1

Digital cellular telecommunications system (Phase 2+) (GSM);General Packet Radio Service (GPRS);Mobile Station (MS) - Base Station System (BSS) interface;Radio Link Control / Medium Access Control (RLC/MAC) protocol (GSM 04.60 version 6.6.1 Release 1997) (Endorsed by Asociación Espanola de Normalización in November of 2021.)