Use a battery backup system to keep your phone working during a power outage. That way, you can still call 911 and maintain home alarms or medical alert services for short periods of time.
Keep in mind:
We offer a 24-hour battery backup option, but you have other options. You can buy a backup option that lasts for less time. For example:
Medical or safety power needs: Can’t be without power due to medical or safety reasons? We suggest you choose a battery that offers up to 24 hours of backup time.
Find out how to check and replace D-cell batteries and more. Download the battery backup guide for digital home phone services with AT&T Fiber (indoor) (PDF, 1.4MB)
APC rechargeable battery units
Get info on how to check, replace, and recharge your APC batteries. Download the battery backup guide for digital phone or G.Fast services (PDF, 1009KB)
The right battery backup for you depends on the type of phone service you have. Review the options to identify your service and equipment type. Not sure what you have? Call us at 800.288.2020 for more help.
Good to know: Before you install a battery backup, make sure you unplug your Wi-Fi gateway. Keep it unplugged while you connect your backup power supply. During this time, your AT&T Internet, Phone, and U-verse TV service will be interrupted. (This includes any scheduled recordings.)