International Telecommunication Union   ITU
Français  Español
 
Site map Contact us Print version
  Home : ITU-T : Publications : Recommendations : E Series : E.421 : E.421 (11/88)
Recently posted -  Search Recommendations -  Shopping cart
   
E.421 : Service quality observations on a statistical basis

Recommendation E.421 (11/88)

Approved in 1988-11

Status : In force


Access : Freely available items

Available languages and formats :

 
Click on the Item

Click on the selected format
and language to get the document

   
Format Size Posted Article Number
English

PDF Document PDF (acrobat)

64846 bytes 1989-01-31 E 14859 
Español

PDF Document PDF (acrobat)

71853 bytes 1989-01-31 S 14859 
Français

PDF Document PDF (acrobat)

79148 bytes 1989-01-31 F 14859 

Access :

TIES users / Subscription Service (ITU Recommendations Online)

Electronic Bookshop - E-Price : 20 CHF (Swiss Francs)

Available languages and formats :

 
Click on the Item

Click on the selected format
and language to get the document

   
Format Size Posted Article Number TIES users Subscribers /or ADD to CART
English

Word Document Word

46249 bytes 1989-01-31 E 14859  Download Download
Español

Word Document Word

56939 bytes 1989-01-31 S 14859  Download Download
Français

Word Document Word

58148 bytes 1989-01-31 F 14859  Download Download

 

Top -  Feedback -  Contact us -  Copyright © ITU 2008 All Rights Reserved
Contact for this page :  ITU-T Publications
Updated : 2001/09/10