SIP/VoIP call disconnects all the time.. HELP!

[ivanhbk]

Here's my setup for my VoIP:

*Linksys PAP2T
*VOIPSTUNT (provider)
*iPKall (Virtual number provider)

My problem is more on the incoming calls I receive as call seems to disconnect after a few minutes. There's no specific number of minutes when the incoming call will disconnect so I can't really figure out what the problem is.

Please help!

Thanks!

[damiancb]

also having a similar problem, except mine seems to be timing out after 3 mins or so, cant put my finger on it though.