Will my telephone service work if there is no power?

Article author
Cogeco support
  • Updated

In the event of a power outage, your telephone service will not work unless there is a battery back-up with the Phone Equipment. 

  • The battery allows your telephone service to function during a power outage, including calls to 911 and connected alarm systems.
  • A fully charged battery can last between 4 to 8 hours depending on usage.
  • Cordless phones will not function during a power outage.

Good to know:

  • Phone equipment models ARRIS TG3452 and Hitron CODA-4589, and our fibre optic gateway F@st 5681V, do not include a backup battery; batteries are sold separately, or customers can purchase an uninterruptible power supply (UPS) from a third party. It is the customer's responsibility to replace the battery when necessary.
  • If your gateway connects to other networking equipment, such as a router or switch, that device would also need to be connected to a UPS for phone service to work during a power outage.

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All DERY and Axion accounts will be integrated into Cogeco’s system.

Over the coming months, we’ll be integrating each account covered by DERY and Axion over into the Cogeco system. Learn more about the integration and how you’ll be impacted.



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