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 Frontier 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? Log in to My Account to see your Account Summary, or chat with a representative.

Frontier® Fiber Internet

For customers with Unlimited Digital Voice (UDV), Fiber Digital Voice, Digital Voice, Unlimited Voice, Digital Phone Unlimited, Digital Phone Essentials, Freedom Essentials, Regional Essentials:

Frontier Internet

For customers with Unlimited Digital Voice (UDV), Digital Voice:

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