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ITU-T G.230 (11/1988) (英) Measuring methods for noise…… 2011-02-18
ITU-T G.232 (11/1988) (英) 12-channel terminal equipments.pdf 2011-02-18
ITU-T G.109 Amendment 1 (01/2007) (英) Definition of categories of speech…… 2011-02-18
ITU-T G.115 (02/1996) (英) Mean active speech level for announcement…… 2011-02-18
ITU-T G.121 (03/1993) (英) Loudness ratings (LRs) of national systems.pdf 2011-02-18

ITU-T G.120 (12/1998) (英) Transmission characteristics of national networks.pdf 2011-02-18
ITU-T G.126 (03/1993) (英) Listener echo in telephone networks.pdf 2011-02-18
ITU-T G.122 (03/1993) (英) Influence of national systems…… 2011-02-18
ITU-T G.131 (11/2003) (英) Talker echo and its control.pdf 2011-02-18
ITU-T G.142 (12/1998) (英) Transmission characteristics of exchanges.pdf 2011-02-18

ITU-T G.136 Erratum 1 (12/2000) (英) Application rules for…… 2011-02-18
ITU-T G.136 (09/1999) (英) Application rules for automatic…… 2011-02-18
ITU-T G.161 (06/2004) (英) Interaction aspects of signal …… 2011-02-18
ITU-T G.169 (07/1999) (英) Automatic level control devices.pdf 2011-02-18
ITU-T G.165 (03/1993) (英) Echo cancellers.pdf 2011-02-18

ITU-T G.164 (11/1988) (英) Echo suppressors.pdf 2011-02-18
ITU-T G.174 (06/1994) (英) Transmission performance objectives…… 2011-02-18
ITU-T G.173 (03/1993) (英) Transmission planning…… 2011-02-18
ITU-T G.172 (11/1988) (英) Transmission plan aspects…… 2011-02-18
ITU-T G.175 (05/2000) (英) Transmission planning for private/public…… 2011-02-18

ITU-T G.180 (03/1993) (英) Characteristics of N M type…… 2011-02-18
ITU-T G.177 (09/1999) (英) Transmission planning for voiceband…… 2011-02-18
ITU-T G.Sup39 (02/2006) (英) Optical system design…… 2011-02-18
ITU-T G.Sup34 (11/1988) (英) Temperature in underground…… 2011-02-18
ITU-T G.Sup28 (10/1984) (英) Application of transmultiplexers…… 2011-02-18

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