Consult your attorney. I think you'll find your proposal is in violation of your usage agreement with Vonage (unless Vonage offers carrier/re-sale service). Find a SIP provider who will actually allow this. Look into TCL router scripts..they may h...
Another thing to consider is security. It's another IP path into your network (possibly). Not too many security issues on PRIs. :)You may have to firewall the SIP connection if it's a new IP connection to your network.
