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 6: Voice Activity Detection (VAD) for half rate speech traffic channels (GSM 06.42 version 4.1.1)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Half rate speech. Part 7: ANSI-C code for the GSM half rate speech codec. (GSM 06.06 version 4.2.1)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Half rate speech. Part 8: test sequences for the GSM half rate speech codec (GSM 06.07 version 4.2.1)
Edition 1998-09-01

Digital cellular telecommunications system (Phase 2). General on Terminal Adaptation Functions (TAF) for Mobile Stations (GSM 07.01)
Edition 1998-08-01

Digital cellular telecommunications system (Phase 2). Terminal adaptation. Functions (TAF) for services using asynchronous bearer capabilities (GSM 07.02)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Terminal adaptation functions (taf) for services using synchronous bearer capabilities (GSM 07.03)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Use of Data Termimal Equipment. Data Circuit terminating Equipment (DTE-DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) (GSM 07.05 version 4.8.1)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Use of the V series Data Terminal Equipment. Data Circuit terminating Equipment (DTE-DCE) interface at the Mobile Station (MS) for Mobile Termination (MT) configuration (GSM 07.06 version 4.2.0)
Edition 1998-09-01

Digital cellular telecommunications system (phase 2). Base Station System. Mobile-services Switching Centre (BSS-MSC) interface. Part 1: general aspects (GSM 08.01)
Edition 1998-09-01