VoIP technology empowers businesses to replace traditional telephones with a complete communications package that happens all on the internet. It enables voice calls over the internet instead of through traditional telephones and wiring, sending data packets over a packet-switched network via media delivery protocols like Session Initiation Protocol or SIP. VoIP phones can utilize cell phones, desk phones, mobile devices, and computers equipped with headset microphones to connect callers, allowing for lower costs and greater functionality compared to traditional phones. However, the quality of VoIP calls relies on a strong internet connection, and there are limitations for emergency services and power dependency. When selecting a VoIP provider, consider factors such as price, scalability, features, channel support, and security and privacy advancements to ensure the right set of features and functionality for your business's needs.