Definitions:
PoE - Power over Ethernet technology
This technology, also known as IEEE802.3af, promises to create a new world of networked appliances, by providing power as well as data over existing Ethernet cables.
What is VoIP?
VoIP allows you to make telephone calls using a computer network, over a data network like the Internet. VoIP converts the voice signal from your telephone into a digital signal that travels over the internet then converts it back at the other end so you can speak to anyone with a regular phone number. When placing a VoIP call using a phone with an adapter, you'll hear a dial tone and dial just as you always have. VoIP may also allow you to make a call directly from a computer using a conventional telephone or a microphone.
