Provide Line Status and Message Waiting Indication
When used with an analog phone line, the VR-1B will provide "ring" indication, "on the phone" indication and "message waiting" indication for both "stutter dial tone" and standard message waiting voltage. In this application the VR-1B connects directly to tip and ring.
When used with electronic or digital phones, the VR-1B won't have you guessing which phone is ringing in busy offices. The flashing LED can be seen up to 100 feet away. The VR-1B connects directly to the electronic phone's speaker.
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