ITU-T E.820-1992
Call Models for Serveability and Service Integrity Performance (Study Group II) 11 pp

Standard No.

ITU-T E.820-1992

Release Date

1992

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.820-1992

Scope

This Recommendition is one of a set of closely related Recommendations concerned with accessibility and retainability of the telephone service, as listed below.

ITU-T E.820-1992 history

• 1992 ITU-T E.820-1992 Call Models for Serveability and Service Integrity Performance (Study Group II) 11 pp