Siphon does not receive incoming calls after a few minutes of sleep on 3G

What steps will reproduce the problem?
1. Run Siphon. Enable backgrounder (not necessarily)
2. Press the power button or leave the iphone to auto lock itself
3. Place one incoming call 3 minutes later and another call 10-15 minutes 
later.

What is the expected output? What do you see instead?
Siphon should ring for both calls. Instead, it rings on the first call, 
but after a longer period it doesn’t show the incoming call. If you turn 
on the screen, Siphon is in the Connected status. Moreover, if you place a 
call, it connects well, and after that we can again place an incoming call 
and Siphon will ring. However, if we again wait for 10-15 minutes, the 
incoming calls won’t go through again and Siphon won’t ring.

What version of the product are you using? On what operating system?
Siphon 2.1.0, OS 3.0

Please provide any additional information below.
I’m using Google Voice and Gizmo. Gizmo calls history show missed calls, 
so GV connects Gizmo. Also, it can stay for many hours and then ring on an 
incoming call on Wifi with Insomnia running. So, it’s not a Gizmo problem. 
Plus other applications like Skype and Fring stay connected on 3G and ring 
on incoming calls after much longer periods than 15 minutes.

My guess is that iphone goes to sleep and Siphon disconnects. However, why 
does it still show Connected and why it doesn’t go to sleep right after 30 
seconds (according to the specification), but rather after couple of 
minutes?

Original issue reported on code.google.com by aleksand...@gmail.com on 17 Nov 2009 at 7:33

dong83615 / siphon

Siphon does not receive incoming calls after a few minutes of sleep on 3G #328