Phone Service During Power Outages When traditional services go out due to power outages to your home or business, as long as the phone lines themselves are not down, your copper-wired phone will work when the lights are out, provided the instrument used does not require power itself.
Keeping a standard, corded phone available can be a lifeline simply by hooking it up to a phone jack. For businesses, this may be the line that supports your fax machine.
Additional information is available if you have fiber-wired, FiOS® Digital Voice phone service.
See also: Communication Tips When Developing a Weather Emergency Plan