The KX-UT133 has been discontinued by the manufacturer. The replacement product is the UTG200.
The Panasonic KX-UT133B is a PoE enabled SIP deskphone offering HD Voice and 4 SIP accounts. The dual 10/100 PoE enabled Ethernet ports allow you to pass through a single network cable drop through the KX-UT133B to your PC allowing both voice and data with a single RJ45 port. The large 242x109 pixel backlit LCD is large enough to see critical user applications and makes this phone easy to use and install.
The KX-UT133-B is certified on BroadSoft® BroadWorks® and Digium®’s Asterisk® platforms. Panasonic SIP phones are a proven, cost-effective endpoint solution for small to mid-size companies utilizing the latest in Hosted and Open Source PBX technology.