Future Call FC-5683-2 Telephone Ringer The Future Call FC-5683-2 telephone ringer lets you know when you receive a phone call with a loud, 95dB alarm and a flashing LED light. Features: Up to 95dB loud ringer Adjustable tone Visual ring indicator Works on PSTN/VOIP/cable lines Line powered Desk and wall mountable Warranty One year warranty Brand Future Call Product Type Accessory Returns: Returns requests are accepted within 30 days of the date of purchase through Returns. Returned item(s) must be the item(s) purchased and must be returned complete in new resalable condition with nothing missing.