A lot of people want to call with Apple's MobilePhone.app on a SIP-Account.

Is there somebody that could made it to call with the standard iphone phone app with a SIP-Account? And that you see also this screen etc.! :

http://www.econectados.com/wp-content/uploads/iphone-call.png

i wouldn't think that this would work because you can't set your sip settings
but it would be something that someone could look into
it would be a great feature

I don´t think its possible in any way, because the Phone app isn´t using Wi-Fi, so it must be completly rewritten!