Thanks, somehow I didn't understand how it all worked with them. So I now need to sign up for the free NY phone number after I got the 777 one.
Edit, all set up now. I'm not sure why I thought the 777 number was the number I got from them. Anyway, I chose a free NY number and the incoming call rings my Obihai now. Its ring is like a double ring however which is odd, but maybe that is Obi telling me it is coming in on SIP2. I'll have to look for a way to fix that.