Hosted VoIP PBX is not the only type of VoIP solution out there. There is actually three types of VoIP. There is PC to PC based VoIP, PC to VoIP phone calling, and VoIP phone to VoIP phone calling.
If you are going to use a VoIP phone, you’ll want to take a VoIP speed test first. Watch this video to learn more about the different kinds of VoIP.
