Digital cellular telecommunications system (Phase 2+); Mobile-services Switching Centre - Base Station System (MSC - BSS) interface; Layer 3 specification
8.15.0
8.14.0
8.13.0
8.12.0
8.11.0
8.10.0
8.9.0
8.8.0
8.7.0
8.6.0
8.5.0
8.4.1
7.7.0
7.6.0
7.4.0
7.2.0
6.5.0
6.4.0
6.3.0
6.2.0
6.1.0