Voice over Internet Protocol (VoIP) is a technology that enables communication over the Internet instead of using traditional analog systems. VoIP converts your voice signal into a digital format that can be transmitted online. Depending on the VoIP service you choose, you may be able to call other VoIP users or any telephone number, including local, long distance, and international calls.

The equipment required for VoIP can vary based on the service you select. You might need a computer, a specialized VoIP phone, or a regular phone with an adapter. However, the person you are calling does not need any special equipment; they can simply use a standard telephone.

When considering VoIP, it's important to note that some service providers may have limitations on their 911 services, and VoIP may not function during power outages unless backup power is provided. Additionally, not all VoIP services offer directory assistance or white page listings, so it's advisable to check with your provider for any specific limitations.