International Telecommunication Union � ITU
Fran�ais� Espa�ol
�
Site map Contact us Print version
� Home : ITU-T : Publications : Recommendations : P�Series : P.31
Recently posted�-� Search Recommendations
� �
P.31�:�Transmission characteristics for digital telephones �

Recommendation P.31

Superseded and Withdrawn components
Number
 Title Status
P.31 (03/93)
� 		Transmission characteristics for digital telephones �
Renumbered as ITU-T P.310 		Superseded

�

Top�-� Feedback�-� Contact us�-� Copyright � ITU�2008�All Rights Reserved
Contact for this page :� ITU-T Publications
Updated :�2007/05/24		 �