Faked - truphone are at it again
I don't believe they've been able to do this.
Cast your mind back to when they demoed their app on the N80 - not the N80i, which has built-in VoIP, but the N80, which hasn't....
When they supposedly launched the N80 client, they put one blurry video on youtube (now pulled) **with half of the screen obscured** (allegedly to shield the dialed number) and the world rejoiced. Watch the video closely though and you'll see the white space at the end of the phone number. If it were a real SIP call, there would be ..@trup... visible at the end of the number.
Plenty of people nagged and nagged Truphone for the N80 client, but were told a string of fibs about code signing and how development code is locked to a particular handset (it isn't, you just self-sign and turn off signature checking).
Once the N80i was launched, the promise of the N80 client disappeared, presumably on the assumption that the early adopters would flash their N80 to an N80i.
If they were to launch it on a vanilla N80, they'd have to write a SIP user agent,.
Now, we have the same charade again - blurry video, nothing on the iPhone but a picture of a phone keypad. Watch how the iPhone disappears from view when the call is made. All they do is show that a Nokia E61i can receive calls, you don't get to see the iPhone show "Dialling..." or "Connecting...".
There is *nothing* in the video to suggest that the iPhone made a call.
Truphone's app has only ever been seen to work on a phone with a built-in SIP stack and UA, such as the Nokia E series. If you look at the contents of their application settings file, you can extract a username and password and use Truphone on your PC with a softphone (despite their claims that this isn't possible).