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
- Get full details on BBU options, installation and battery replacement: Customer Guide to FiOS Digital Voice BBU
- Buy a BBU for your FiOS service now.
Vantage™ by Frontier® Fiber Digital Voice
For Vantage Fiber Digital Voice customers
- Get full details on installation and battery replacement: Customer Guide for Vantage Fiber Digital Voice BBU
- Buy a BBU for your Vantage Fiber Digital Voice service now.
Vantage Internet Digital Voice
For Vantage Internet Digital Voice customers
- Get full details on installation and battery replacement: Customer Guide for Vantage Internet Digital Voice BBU
- Buy a BBU for your Vantage Internet Digital Voice service now.
FiberHouse & Voice, and Frontier Fiber & Voice
For FiberHouse and Frontier Fiber Internet customers
- Get full details on installation and battery replacement: Customer Guide for FiberHouse or Frontier Fiber & Voice BBU
- Buy a BBU for your FiberHouse or Frontier Fiber & Voice service now.
The FiOS® marks are owned by Verizon Trademark Services LLC and used under license.