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E.721 : Network grade of service parameters and target values for circuit-switched services in the evolving ISDN

Recommendation E.721

In force components
Number
Title Status
E.721 (05/99)
 
Network grade of service parameters and target values for circuit-switched services in the evolving ISDN   In force
 
 
Superseded and Withdrawn components
Number
Title Status
E.721 (11/88)
 
Network grade of service parameters in ISDN   Superseded
E.721 (08/91)
 
Network grade of service parameters and target values for circuit-switched services in the evolving ISDN   Superseded

 

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Updated : 2007/10/26