I have a surgery center that has 8841s installed. The issue they are having is when the machines are running and people are talking during a case, they are not able to hear the phone ringing at the desk by the door. I realize there are external IP based ringers but they require an additional cable and jack. Due to the cost of running new cable in an Operating room environment, I would like to find out if there are any developed and available that will work off of the Aux port on the back of the phone.
