Have the above mentioned system. Of the 16 ports only the first 6 work. When a phone is plugged into 7 and 8 the phone just makes a bunch of strange noises. When plugging into 7-16 I get nothing. I have been told that maybe 7-8 are not programmed for the correct phone. I only need two more ports so 7-16 do not matter at the moment.
Any input would be greatly appreciated.
Mike