Visual Ring Indicator shsdparentproduct you can easily bring the

you can easily bring the shine back

A modern line cord has be added to this unit for your convenience

Compatible with dials used in 500 type sets and with No6 dials when used with appropriate mounting "spider" (sold seperately

Manufacturing licenses of the "2500/2554" designs were granted to a number of other companies as well

Visual Ring Indicator shsdparentproduct you can easily bring theA flashing LED visible over 100 feet indicates that you're talking on your headset or that your electronic or analog phone is ringing. On analog phones, a steady LED indicates "on the phone" while "stutter" dial tone or 100 V. D. C provide "message waiting" indication.