This is a bit disappointing. BroadVoice has been one of the more innovative VoIP companies in the United States, and was one of the first to share credentials with their users so they could enjoy the benefits of unlimited calling across various hardware devices.

Unfortunately, because BroadVoice requires that a device be "registered" with their service in order to make a call (with most services, simply passing a user credentials at the time of the call suffices), it cannot at this point be used with RF.com.

If this changes, we'll let you know.