I would like to suggest a small application that would function as a sip tunnel proxy for the pocketPC phone.
The proxy would connect connect the tunnel to the server, and the generic sip client would only have to connect to the Sip Tunnel Proxy manager running on the phone itself.
I tried many times to connect an extension from a HSDPA Windows Mobile phone directly to the 3CX server, but NAT always gets in the way.. VPN works, but is too complicated...
I use Portsip CE to connect to a sip provider from my HTC Touch Pro 2... link: http://forum.xda-developers.com/showthread.php?t=508715
So..
Thanks in advance..

