Digital cellular telecommunications system (Phase 2+) - Half rate speech - Half rate speech processing functions (GSM 06.02 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - ANSI-C code for the GSM half rate speech codec (GSM 06.06 version 8.0.1 Release 1999) (incl. Diskette!!!)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Test sequences for the GSM half rate speech codec (GSM 06.07 version 8.0.1 Release 1999) (incl. CD-ROM!!!)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Half rate speech transcoding (GSM 06.20 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Substitution and muting of lost frames for half rate speech traffic channels (GSM 06.21 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Comfort noise aspects for the half rate speech traffic channels (GSM 06.22 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Discontinuous Transmission (DTX) for half rate speech traffic channels (GSM 06.41 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - Half rate speech - Voice Activity Detector (VAD) for half rate speech traffic channels (GSM 06.42 version 8.0.1 Release 1999)
Edition 2001-02-01

Digital cellular telecommunications system (Phase 2+) - In-band control of remote transcoders and rate adaptors for half rate traffic channels (GSM 08.61 version 8.0.1 Release 1999)
Edition 2001-02-01

Measurement Method of a Half-Wavelength Voltage for Mach-Zehnder Optical Modulator in Wireless Communication and Broadcasting Systems (IEC 103/120/CDV)
Edition 2013-10-15