Gaining access to the benefits of VoIP requires you to select a VoIP provider, of which there are quite a few on the market to choose from. Some VoIP services are built right into your smartphone, like FaceTime or iPhone users. For Android users, this can include Google Duo or WhatsApp. Another popular VoIP app that many people are familiar with is Skype, a service that has been somewhat taken over lately by Microsoft Teams. While you might have free VoIP options built right into your smartphone, they don't always work for your business. The VoIP platforms in your smartphone lack the features, functionality, and flexibility your business phone system will require. For VoIP to work on your cell phone, you’ll need: A smartphone with the capability to download applications A reliable connection to the internet or a reliable WiFi hotspot through your smartphone An up-to-date operating system on your mobile device A provider that allows you to default to data use if your WiFi connection is lost When your WiFi connection can default to data, this helps protect you from losing data in an internet outage.