You can change the administrator password for the Administration menu on the phone.
The administration password must be between 6 to 31 alphanumeric characters. You can use special characters such as: tilde (~), exclamation mark (!), at (@), pound (#), dollar ($), percent (%), carat (^), ampersand (&), asterisk (*), underscore(_), minus (-), plus (+), equal (=), back quote (`), pipe (|), parenthesis (()), braces ({}), brackets ([]), colon (:), semicolon (;).
