ITU-T E.721-1999
Network grade of service parameters and target values for circuit-switched services in the evolving ISDN Study Group 2; 11 pp

Standard No.

ITU-T E.721-1999

Release Date

1999

Published By

International Telecommunication Union (ITU)

Latest

ITU-T E.721-1999

Scope

This Recommendation provides network Grade of Service (GOS) parameters for circuit-switched services in ISDN, based on the ISDN Grade of Service concept and guidelines for selecting GOS parameters provided in Recommendation E.720.

ITU-T E.721-1999 history

• 1999 ITU-T E.721-1999 Network grade of service parameters and target values for circuit-switched services in the evolving ISDN Study Group 2; 11 pp