ITU-T E.427-1993
COLLECTION AND STATISTICAL ANALYSIS OF SPECIAL QUALITY OF SERVICE OBSERVATION DATA FOR MEASUREMENTS OF CUSTOMER DIFFICULTIES IN THE INTERNATIONAL AUTOMATIC SERVICE

Standard No.

ITU-T E.427-1993

Release Date

1993

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.427-1993

Replace

ITU-T E.427-1988

Scope

This Recommendation is provided to permit the orderly collection of data required for special studies to identify sources of difficulty in customer use of the international automatic telephone service.

ITU-T E.427-1993 Referenced Document

• ITU-T E.427 COLLECTION AND STATISTICAL ANALYSIS OF SPECIAL QUALITY OF SERVICE OBSERVATION DATA FOR MEASUREMENTS OF CUSTOMER DIFFICULTIES IN THE INTERNATIONAL AUTOMATIC SERVICE

ITU-T E.427-1993 history

• 1993 ITU-T E.427-1993 COLLECTION AND STATISTICAL ANALYSIS OF SPECIAL QUALITY OF SERVICE OBSERVATION DATA FOR MEASUREMENTS OF CUSTOMER DIFFICULTIES IN THE INTERNATIONAL AUTOMATIC SERVICE
• 1988 ITU-T E.427-1988 Collection and statistical analysis of special quality of service observation data for measurements of customer difficulties in the international automatic service