$50 for 750 minutes sounds a bit expensive, especially considering how cheap Google Voice is. I know that it is a little premium with better support but a regular cell phone service probably has unlimited minutes for $50/month. * I am assuming incoming calls are also billed.

Also, is there an option for international calls? I don't see any pricing info for international calls.

I'm looking for a serious alternative to Google Voice and this almost fits the bill, but expensive. As someone mentioned a SIP option would be great too.