I have to press 1 every time I get a call.

[AC Question]

So I downloaded Google Voice in my phone and I have to press 1 every time I get a call for last 12 months. And I got a new phone and found out that it was because of Google Voice and my phone is still android. But it says my number is already existed and I can't enter it. I cant make a new account either. How can I enter it?