European digital cellular telecommunications system (phase 2). Operator determined barring (GSM 02.41)
Edition 1996-08-01

Digital cellular telecommunications system (Phase 2). Radio transmission and reception (GSM 05.05)
Edition 1997-12-01

Digital cellular telecommunications system (phase 2). Physical layer on the radio path. General description (GSM 05.01)
Edition 1996-12-01

Digital cellular telecommunications system (Phase 2). Multiplexing and multiple access on the radio path (GSM 05.02)
Edition 1997-10-01

Digital cellular telecommunications system (phase 2). Half rate speech. Part 5: Discontinuous Transmission (DTX) for half rate speech traffic channels (GSM 06.41 version 4.0.2)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Half rate speech. Part 4: comfort noise aspect for half rate speech traffic channels (GSM 06.22 version 4.1.1)
Edition 1998-09-01

Digital Video Broadcasting (DVB) - Framing structure, channel coding and modulation for Satellite Services to Handheld devices (SH) below 3 GHz (V1.2.1)
Edition 2012-04-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: supplementary services stage 3 - Sub-part 13 : Call Completion to Busy Subscriber (CCBS) (V1.2.1)
Edition 2012-08-01

Digital cellular telecommunications system (Phase 2). Base Station Controller. Base Transceiver Station (BSC - BTS) interface. Layer 1 structure of physical circuits (GSM 08.54)
Edition 1998-12-01

Digital cellular telecommunications system (Phase 2 & Phase 2+) - Base Station System (BSS) equipment specification - Radio aspects (GSM 11.21 V 8.2.1)
Edition 2005-11-01