For many years, your home telephone would allow you to stay connected to emergency voice services during a power outage. However, if your voice telephone service is provided using fiber optics rather than the traditional copper based line, the voice telephone service requires backup battery power to continue functioning during an outage. To avoid a disruption of voice service during an outage – and to maintain the ability to connect to 911 emergency services – KMTelecom provides you with a battery for the backup power for your voice telephone service at the time of the initial installation at no additional cost listened here in our Backup Customer Notice.