You could get by without a PoE switch too. If you already have a large switch and want to add PoE functionality, you can add something called a midspan/PoE injector.

There are other benefits to PoE as well. If you have a UPS, your phones will also be running in case of a power outage. If you use the brick and VoIP, you will be out of luck.

Here's an 8 Port one. They also have a 12 Port Rack Mountable option. We use the latter. There is additional clutter involved though.

http://www.amazon.com/WS-POE-8-48v60w-passive-Ethernet-Injector-cameras/dp/B0086SQDMM

Large PoE switches with 24/48 ports can be 3-4 times the cost of a regular switch.

Another great option is a small PoE switch if you've run out of ports. VoIP is very low bandwith so 100 Mbit is fine. A company called Eagle Eye makes 8 Port PoE switches with dedicated uplinks that can be added to an existing switch.

http://www.amazon.com/Eagle-Port-Switch-Uplink-SW09i/dp/B00H58P8RU

Sandeep Luthra | LTMedical.net
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