NORSTAR Adjust the contrast of your display at the telephone.

If You have questions please call (866)206-2316 or email
MasterTelephone@gmail.com www.TelephoneSetUp.com




Adjust the contrast of your display at the telephone.
1 Press FEATURE *7.
2 Press a number from 1 to 9 (depending on your telephone).
3 Press HOLD to set your choice.