iPhone 4 fw 4.2.1 Siphon 3.9.7 unable to connect to freephonie

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Launch Siphon 3.9.7
2. Unable to connect to freephonie
3. Worked perfectly on 3.9.6 but same issue on 3.9.5

What is the expected output? What do you see instead?
Service appears to be unavailable

What version of the product are you using? On what operating system?
Siphon 3.9.7 on 4.2.1 iPhone 4

Please provide any additional information below.

Original issue reported on code.google.com by bj200...@gmail.com on 21 Mar 2011 at 7:59

[GoogleCodeExporter]

Issue exists only with "Backgrounding" option on.
Siphon keeps on trying to connect then shows service unavailable.
Siphon connects immediately with option off. 

Tested with 3.9.7 and 3.9.8. iPhone 4 on 4.1. 
SIP: Freephonie (via freephonie.net)

Original comment by alexandre.lautel@gmail.com on 31 Mar 2011 at 1:57

[GoogleCodeExporter]

Thanks for your comment.
On iOS the backgrounding works with TCP connection only.
I don't think free enables TCP connection. So it's logic it's impossible to 
connect to freephonie in this case.

Original comment by samuelv0...@gmail.com on 31 Mar 2011 at 6:04

• Changed state: Invalid

[GoogleCodeExporter]

I was digging into the log and also read your changelog regarding backgrounding 
only possible with TCP! Actually, yes, Free uses UDP.
Too bad.

Original comment by alexandre.lautel@gmail.com on 31 Mar 2011 at 6:11