49 Series: Signalling protocols ("stage 3") - intra-fixed-network

General network interworking scenarios
Application of the Base Station System Application Part (BSSAP) on the E interface
Location Services (LCS); Base Station System Application Part LCS Extension (BSSAP-LE)
General Packet Radio Service (GPRS); Interworking between modified Public Land Mobile Network (PLMN) supporting GPRS and legacy GPRS mobiles