A backup power supply (battery) is required for your digital voice service to be in service in the event of a power outage. A backup battery may be purchased from NNTC. A technician will install the battery. The battery will allow regular corded land line phones to work during a power outage, which will maintain your ability to connect with 911 emergency services. If you use a cordless phone as your landline, this back-up battery unit will not provide power to your cordless phone. The backup battery simply supplies service to your landline.

What Your Battery Can-and Can’t-Do for You

Our backup battery allows you to continue to use your home voice service during a power outage. Without a backup battery, you will not be able to make any calls, including emergency calls to 911. Our backup battery does not provide power to any service other than voice. Home security systems, medical monitoring devices and other equipment will not run on a home phone backup battery.

Purchase and Replacement Options

8-hour or 24-hour backup batteries are available directly from NNTC. Please call 888-397-4321 to order a battery and to schedule installation.

Expected Backup Power Duration

The battery backup is expected to last either 8 hours or 24 hours (depending on the battery you purchase) in the event of a power outage. Battery age, usage and environment can also have an impact on the amount of time the battery will last The estimated life expectancy for the battery is 2-4 years depending on power outage frequency and environment.

Instructions for Proper Care and Use of Your Battery

Please follow the instructions included with your battery for proper use, storage, and care. Batteries should be stored in locations under normal room temperatures.

You should periodically remove and test your battery to verify both operation of the backup battery and its condition. The battery backup unit can be tested by unplugging it from the power outlet. If it is working correctly, the Optical Network Terminal will remain powered and regular corded land line phones will still work in the house. Make sure to plug the unit back in at the end of testing.

Battery backup units will display a battery light when the battery needs replaced.

Federal Communications Commission (FCC) codes regarding “Backup Batteries”.