Q: Will Vonage work if the power goes out?
A: Vonage requires a high speed internet connection to function, and if the power goes out your modem/router (which uses electricity) will stop working, thus interrupting Vonage service. If you’d like to be uber-prepared, you can purchase a backup power supply. This is commonly referred to as a Uninterruptible Power Supply (UPS), and you can usually pick one up at your local electronics stores.
An easier way to deal with a potential power outage is to use Vonage’s Network Availability Number service. This is a backup number that Vonage will automatically forward your calls to in case your internet connection is interrupted. If you have a mobile phone, you can have your calls forwarded to it and you won’t have to worry about missing a call. You can set up your Network Availability Number in your Vonage Online account, which is an included feature for Vonage customers.