Digital cellular telecommunications system (Phase 2+) - Mobile radio interface layer 3 supplementary services specification - Formats and coding (GSM 04.80 version 5.3.1 Release 1996)
Digital cellular telecommunications system (Phase 2) - Mobile-services Switching Centre-Base Station System (MSC-BSS) interface - Layer 3 specification (GSM 08.08 version 4.12.1)
Digital cellular telecommunications system (Phase 2+) - Functions related to Mobile Station (MS) in idle mode and group receive mode (GSM 03.22 version 5.3.1 Release 1996)
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) - Specification of the Subscriber Identity Module-Mobile Equipment (SIM-ME) interface (GSM 11.11 version 4.21.1)
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2 - Sub-part 22: Dynamic Group Number Assignment (DGNA)
