Visual Ring Indicator shsdparentproduct Plugs directly into connecting block

Plugs directly into connecting block

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

The outer edge of the dial has been stripped and repainted with a gloss white enamel

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

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Visual Ring Indicator shsdparentproduct Plugs directly into connecting blockA 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.