ITU-T E.543-1993
GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES

Standard No.

ITU-T E.543-1993

Release Date

1993

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.543-1993

Replace

ITU-T E.543-1988

Scope

The grade of service (GOS) parameters and values to be used as dimensioning standards and as performance objectives for international telephone exchanges are indicated below. Procedures to monitor the actual GOS performance of the exchanges are also recommended.

ITU-T E.543-1993 Referenced Document

• ITU-T E.500 Traffic Intensity Measurement Principles - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Quality of Service Network Management and Traffic Engineering - Traffic Engineering - Measurement and Recording of Traffic*， 1998-04-19 Update
• ITU-T E.543 GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES

ITU-T E.543-1993 history

• 1993 ITU-T E.543-1993 GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES
• 1988 ITU-T E.543-1988 Grades of service in digital international telephone exchanges