Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 1: Radio aspects (GSM 11.21 version 4.14.1)
Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 2: Signalling aspects (GSM 11.23 version 4.9.1)
Electromagnetic compatibility and Radio spectrum Matters (ERM) - ElectroMagnetic Compatibility (EMC) for European digital cellular telecommunications system (GSM 900 MHz and DCS 1800 MHz) - Part 3: Base station radio and ancillary equipment and repeaters meeting Phase 2 GSM requirements
Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 3: Transcoder aspects (GSM 11.24 version 4.3.1)
