Digital cellular telecommunications system (Phase 2+); Mobile Station - Base Station System (MS - BSS) interface; Data Link (DL) layer specification (GSM 04.06 version 7.1.2 Release 1998)
gültig ab
2024-10-01
internat. Übereinstimmung
EN IEC 60947-1 (2021) , ident ETSI EN 300 938 V7.1.2 (2000 09) , ident