Manages call control (CC), Short Message Service (SMS), and supplementary services. Services and Security
The Global System for Mobile Communications (GSM) is the foundational standard for second-generation (2G) digital cellular networks. It was developed to provide a unified digital mobile system that facilitates seamless international roaming and secure voice and data services.
The GSM network architecture is divided into three primary subsystems that manage communication, switching, and operations: GSM – Architecture, Protocols and Services
Support for data transmission, originally limited to 9.6 kbps but later improved through upgrades like GPRS and EDGE .
GSM provides a variety of standard services and built-in security measures: Manages call control (CC), Short Message Service (SMS),
Includes features such as call forwarding, call waiting, and multi-party conferences.
Often called the core network, it performs call switching and manages subscriber mobility. Key components include: The GSM network architecture is divided into three
Verifies user identities and provides security keys for encryption.