Let’s define what “uses VoIP” means. The VX uses it in two distinct ways: One, it can connect to Telco services using standard SIP VoIP. You benefit from having options—connecting to SIP providers and SIP PBXs digitally, or to ISDN and analog lines via gateways, Asterisk servers, etc. With VX you can finally integrate your on-air phones with office phone systems from a variety of vendors. Getting Telco service from VoIP dial-tone providers means that your audio quality and hybrid null will be much better as VoIP dial tone is delivered “4 wire” without hum, noise, and loop loss. Building on ubiquitous VoIP standards means a variety of third-party hardware can offer flexibility, and you might save a lot of money getting service this way. Two, VX system components connect to each other over standard IP/Ethernet networks with all the advantages that brings. For example, in Livewire-equipped facilities, one RJ-45 jack connects dozens of audio channels and rich control to phone-like controllers, PC applications, integrated console controllers, etc.