I have a little bit of an update on this and was wondering if anyone else might have had this issue. They are wrapping the network cable around the base of the UC360 to store the network cable. I believe that if 4 to 5 turns of the network cable are left around the base, the echo issue seems to be worse. I left the unit in the same place and completely unwound the network cable and the echo went away. Any thoughts on this? My experience says with the POE voltage through the network cable a field is being generated and affecting the unit.