iNomado

iPhone VoIP best app

if you see SIP button in green, it means that your sip line is registred and therefore you can start calling via EDGE, 3G or WiFi Internet access, like Hotspots..

Be aware that Calls over EDGE might not be so good, you can test.

We calculated the cost of 3G VoIP calls and it seems to use 1 meg per minute of calls. So if you call 10hours it might use 600 meg. That is with g711, it might be much less with GSM codec.

The iNomado is expected to be released by the Appstore in April. Iy will be offered for free.