I am adding another phone to our system. I have set up the user and the extension. When I plug in the phone I know I have to tell it what extension it is. I press "Login" and enter the new extension "345#", then press next. when I set up the ones in use I didn't enter a password just pressed "done" but I get the word "INVALID". I think there may be a default password. Does anyone know what it is? How to solve the issue? Thanks.

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