I've been searching for an application which will allow me to make outgoing calls abroad over a wi-fi connection. Just like Skype on the desktop. Google Voice is not an option for me since I'm outside of US, and Skype doesn't seem to even have VoIP on Android. What do others recommend using for their VoIP needs? Is there a service that already has an outgoing plan like SkypeOut? And an incoming number like SkypeIn?