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  Home : ITU-T : Publications : Recommendations : E Series : E.721 : E.721 (08/91)
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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 (08/91)

Approved in 1991-08-23

Status : Superseded

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Format Size Posted Article Number

PDF Document PDF (acrobat)

57049 bytes N/A E 2337 

PDF Document PDF (acrobat)

68094 bytes N/A S 2359 

PDF Document PDF (acrobat)

69580 bytes N/A F 2315 


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Updated : 2001/09/10