Activating Display FUnction on a 2616 phone

[PTALLY]

Hi I need to know how to activate a display module on a 2616 phone? I have one 2616 without a display module and now I want to switch it out with one that does have one. How do I turn the display function with this phone? Any help would be greatly appreciated.

Thank You in Advance

PT

 

[Reusser]

Class of service for this set CLS must have ADD or TDD, also key 7 must be unassigned (null).

Depending on the age of the phone, some old 2616s required a power card and external power.

 

[PTALLY]

Thank you very much I really do appreciate this.

PT