You may try to set to factory default. from the phone
you can perform Factory Reset, Press 73738 then Press 1 to confirm.
Press * (star) to cancel.
If necessary, enter the password. The Phone
Adapter will request confirmation; enter 1 to
confirm. You will hear, “Option successful.”
Hang up the phone. The Phone Adapter will
reboot, and all settings will be reset to their
factory default settings.
If you need further assistance please post your question
You idiot, the problem is, he doesn't have the password, how is he going to do that without it? If you're going to offer advise in here, make sure to read the entire problem first before blurting out stupid or ignorant sh*t that has nothing to do with the problem itself.