I have the strangest problem with my E61 now. After working perfectly for a while, it has decided that it will no longer dial outbound numbers. Inbound calls are fine, calls to extensions are fine, even calls to pstn numbers where I have mapped an extension number to the phone works, (e.g. Ext. 1234 rings my mobile). I've tried creating a special outbound route for the E61, but this doesn't help. Any ideas.
If this problem only occurs in a specific network it might help to change the port number (in the phone's settings) from the default 5060 to 5061 or 80.
The problem happens on multiple networks and I can place internal calls, calls to mapped extension (e.g. extension 202 = +12125551212), receive internal all calls, get a dialtone by dialing a pin coded extension meant for trusted outside callers to use the net, etc.
I've deleted and rebuilt the extension on both the PDA and PBxes.com. The only thing I've been thinking is that I did have truphone on the unit and wonder whether they change some default settings at the Symbian equivalent of the registry level.