Did you get a Free NY DID from Callcentric? Or, are you trying to call the 1777xxxxxxx Callcentric number? The 1777xxxxxxx number is your account number and not a phone number. To actually have an inbound number, you must order a Free NY DID. They will ask you if you will be using the service inside or outside the US. If you answer inside the US, they will add a $1.50 e999 fee per month, otherwise its Free. You then can add the NY DID as a forwarding number to Google Voice.