GSM provides a variety of standard services and built-in security measures:
The GSM network architecture is divided into three primary subsystems that manage communication, switching, and operations: GSM – Architecture, Protocols and Services
Often called the core network, it performs call switching and manages subscriber mobility. Key components include: GSM provides a variety of standard services and
Verifies user identities and provides security keys for encryption. and the Base Station Controller (BSC)
Manages radio transmissions over the air interface (Um interface) using a combination of FDMA and TDMA .
The central node for call routing and management.
Handles the radio link with mobile devices. It includes the Base Transceiver Station (BTS) , which contains the radio transmitters and receivers, and the Base Station Controller (BSC) , which manages radio resources and handovers for multiple BTSs.
