You must have broadband internet service, such as DSL or cable modem service. Depending on the type of service you subscribe to, you may not need any special equipment or you may need a computer, a special VoIP phone, or just and adapter for your phone.
Because VoIP relies on electrical current to run the computer, it may not work if there is a power failure. Ask the service provider if it provides a back up battery and how long that will last.
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