To make or receive calls using Voice-over-IP technology, you need a hardware setup that allows you to speak and listen. You may only need a headset with your PC, or you may need a complete set of networking equipment, including routers and phone adapters. We’ve compiled a list of the equipment you’ll typically need for VoIP, but you won’t need everything we’ve listed. What you need depends on what you use and how you use it.
What hardware is needed to install a VoIP phone system?
An analog telephone adapter acts as a hardware interface between an analog PSTN telephone system and a digital VoIP line. You don't need an ATA if you're using PC-to-PC VoIP, but you will use it if you sign up for a monthly VoIP service that's being implemented in your home or office, and you plan to use your existing phones.
The phone set is essential for VoIP — it is both an input and output device. Different types of phones can be used with VoIP, depending on the circumstances, your needs, and your choice.
While you can use an analog phone designed for PSTN networks, you may find more value in a dedicated VoIP phone or even a non-hardware softphone app.
