Quote Originally Posted by fisamo View Post
If the call originates of VT's network and they "still think" you're a customer, the call will be routed to your VT adapter. With VT-to-VT calls, the call never makes it to the PSTN to receive the routing instruction to your new provider.
Fortunately, I'm not aware that I know any VT customers. I was always afraid to recommend them to my friends and relatives.