International Telecommunication Union   ITU
Français  Español
 
Site map Contact us Print version
  Home : ITU-T : Publications : Recommendations : E Series : E.420
Recently posted -  Search Recommendations -  Shopping cart
   
E.420 : Checking the quality of the international telephone service - General considerations

Recommendation E.420

In force components
Number
Title Status
E.420 (11/88)
 
Checking the quality of the international telephone service - General considerations   In force

 

Top -  Feedback -  Contact us -  Copyright © ITU 2008 All Rights Reserved
Contact for this page :  ITU-T Publications
Updated : 2003.02.10