Cart
0
Product
Products
(empty)
No products
To be determined
Shipping
$0.00
Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart.
There is 1 item in your cart.
Total products
Total shipping
To be determined
Total
Sale!
View larger
View larger
ITU-T E.721
New product
ITU-T E.721
Network grade of service parameters and target values for circuit-switched services in the evolving ISDNMore info
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. The parameter values assume that the network and the components are fully operational and take account of the evolving nature of the ISDN and Signalling System No. 7 capabilities. This version of this Recommendation includes revised parameters for GOS target values for circuit-switched services in the evolving ISDN.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.35 : Telephone networks
33.080 : Integrated Services Digital Network (ISDN) |
| Number of pages | 10 |
| Replace | ITU-T E.721 (1991-08) |
| Year | 1990 |
| Document history | ITU-T E.721 (1999-05) |
| Country | Switzerland |
| Keyword | CCITT E.721;ITU-T 721;721;ITU-T E.721 |