Battery Backup for Voice

Frontier Digital Voice service needs your home's electricity to work. If you lose power, a Battery Backup Unit (BBU) can power your phone so you can make phone calls—including emergency 911 calls.

To get this protection, order a Battery Backup Unit for your service. Installing a BBU is optional for all Frontier Digital Voice customers. Battery backup provides access only to your Digital Voice service during a power outage. It does not power your Frontier internet or TV service.

See below for your service. Not sure which voice service you have? Click to chat with a representative.

FiOS® Digital Voice

For FiOS Digital Voice customers

Vantage™ by Frontier® Fiber Digital Voice

For Vantage Fiber Digital Voice customers

Vantage Internet Digital Voice

For Vantage Internet Digital Voice customers

FiberHouse & Voice, and Frontier Fiber & Voice

For FiberHouse and Frontier Fiber Internet customers


The FiOS® marks are owned by Verizon Trademark Services LLC and used under license.

Still need help? Call 1.800.239.4430 or Live Chat

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