Does cable modem phone work in power outage?

No, a cable modem phone typically does not work during a power outage. This is because cable modems require electricity to operate, and without power, the modem and associated equipment cannot function. However, some cable providers offer backup battery solutions that can keep the modem operational for a limited time during an outage. If you rely on your phone during power outages, consider alternative solutions like a traditional landline or a mobile phone.