International Telecommunication Union � ITU
Fran�ais� Espa�ol
�
Site map Contact us Print version
� Home : ITU-T : Publications : Recommendations : G�Series : G.109
Recently posted�-� Search Recommendations
� �
G.109�:�Definition of categories of speech transmission quality �

Recommendation G.109

In force components
Number
 Title Status
G.109 (09/99)
� 		Definition of categories of speech transmission quality � In force
G.109 (1999) Amendment 1 (01/07)
� 		New Appendix I � The E-model-based quality contours for predicting speech transmission quality and user satisfaction from time-varying transmission impairments � In force

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-T Publications
Updated :�2011.03.14		 �