To Change your VOIP Voicemail Passcode/PIN Using Your VOIP Phone
Call into your VOIP Voicemail box.
At the Main menu, select the option Setup Options, then Preferences, and Passwordthen PIN.
Follow the prompts to enter and confirm a new passwordPIN. Use digits 0 through 9.
Once you are finished following the prompts, hang up.
Phone UserGuide: