Top SIP IP Conference phone, works great but you need power supply if you don't have Power of Ethernet switches.

Best conference phone out there

Excellent audio performanceRight-sized for a small conference room or executive officeBroad support across PBXs & hosted

Great basic conference phone, like a "mini" polycom

There are a few small conference phones available from lesser known companies, but in this price range these tend to provide only analog or USB interfaces

GREAT CONFERENCE PHONE

Works as advertised and is a good conference phone; however I must warn you all that this is not a very straight-forward product, thus my 2-star rating