Good product, but will NOT do group (multipoint) video conferencing.
30 April 2014
Summary: This is a good product. It appears to be well made and worked perfectly in 2-user point-to-point mode (that is, only two endpoints involved), but it does have one restriction that forced me to return the whole lot. I purchased 7 of these things in order to do multipoint (group) video teleconferencing for a fire department, but it turns out that this product will not perform that function.