- Category:
- VOIP program
- Tags:
-
- File Size:
- 114.46kb
- Update:
- 2008-10-13
- Downloads:
- 0 Times
- Uploaded by:
- qiushutian
Description: This is a sip of agreement on the article, the story of three agreements : sip, sdp, sap the working principle of the agreement, worth studying
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