I recently purchased a pair of Panasonic KX-TG6522E cordless phones with answer machine. I have noticed that when I am having a conversation with someone I can hear his voice perfectly, but when I speak I can hear a tinny echo of my own voice delayed by about 200ms. However, my friend at the other end of the line can hear me perfectly.
Has anyone experienced a similar fault? Is it likely to be a BT system fault, or a fault in the Panasonic phones?