doubango boghe send invite, but no reponse return

[GoogleCodeExporter]

What steps will reproduce the problem?
1.sip trough  symmetric nat problmen
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?
doubango boche
windows 7

Please provide any additional information below.

Original issue reported on code.google.com by chenh...@gmail.com on 27 Feb 2013 at 9:43

Attachments:

• doubango_symmetric_nat.pcapng
• architecture.jpg