| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1522.7-2013 | English | 1049 |
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Technical requirements for session initiation protocol. Part 7: SIP supporting presence and instant message service
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YD/T 1522.7-2013
| Valid |
YD/T 1522.7-2013
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