Can anybody suggest a good make and model of a light that flashes upon ring voltage. (panasonic kxtd1232, need 2 flashers, 1 for department A, 1 for department B) When a call gets transferred to the appropriate light (analog extension actually) that particular department will just hit their programmed pickup key for said light.
I just can't remember what they are actually called and any good makes and models of them.

Thanx for any suggestions