| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1277.1-2003 | English | RFQ |
ASK
|
Days<=5
|
Technical specification and testing method of caller identity delivery based on PSTN. Part 1: Technical specification
|
YD/T 1277.1-2003
| Obsolete |
YD/T 1277.1-2003
|