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
Reduced price!
View larger
View larger
More info
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.20 : Transmission systems
|
| Number of pages | 10 |
| Cross references | GB/T 17904.2 (1999), NEQ |
| Year | 1990 |
| Document history | |
| Country | Switzerland |
| Keyword | CCITT Q.921bis;ITU-T 921;921;ITU-T Q.921bis |