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In addition to your ONT, your service has a Battery Back-up Unit (BBU) that is located inside your garage or house. In case your ONT is accidentally unplugged or in the event of a commercial power failure your back-up battery will provide you with power for voice service for up to 8 hours.

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by Kirby Smith See Profile edited by drake See Profile
last modified: 2005-10-17 01:48:50