| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 3971.2-1983 | English | 559 |
Add to Cart
|
Days<=3
|
Interoffice junction digital line signalling system for telephone automatic switching network
|
GB 3971.2-1983
| Obsolete |
GB 3971.2-1983
|