One of the biggest reasons for the popularity of VoIP phone systems is that they require very little equipment and hardware to operate. The most important thing you’ll need is a stable Internet connection from your ISP with a bandwidth of at least 100kpbs/second. Note that the VoIP provider is not responsible for the cost/management of your Internet.  You’ll also need a router and modem.  Since VoIP phones offer softphone capabilities and mobile applications via BYOD, you aren’t required to purchase any new phones or computers.   The majority of VoIP users opt for a cloud-based solution, which means the provider is responsible for hosting the data server. Some businesses opt for on-premises VoIP service, which requires additional equipment (and professional setup/installation.)  Common, but optional, equipment also includes headsets, speakers, analog phones, microphones, and even professionally installed conference rooms with things like digital whiteboard screens.