All, I have our new up and running, we have a couple people unable to communicate, they can call back tothe main number but not to each other? the phone will ring, the person calling can hear that. the receiving phone can hear the call coming in but when the phone is answered no audio. that happens to both people. calling each other. Aany ideas?? thanks for the assist on my other posts, too many cooks in the kitchen on our end.