restricting open ringing Without getting into the specific circumstances of complaints about particular towers, I want to mention a phenomenon that is not widely understood but which is very often a factor underlying noise nuisance complaints generally. Part of our "flight or fight" response relates to sounds. Our perception of a sound alters with exposure and repetition, to the extent that once a particular sound has annoyed us, even only slightly, we become habituated to subconsciously 'listening out for it' as if it is a threat precursor. The next time we hear it our stress level increases a little more than the previous time until it becomes intolerable after a few repetitions, like nails scraping a blackboard. This is seen by others as an unreasonable, irrational response, but it can be psychologically devastating for the aggrieved person. Examples include, say, a neighbour's yapping dog that the first time is just a minor intrusion but after a week or two becomes an instant trigger of elevated stress on first yap. It is very difficult to ameliorate the problem because it is not the duration of the "noise nuisance" of a bit of ringing on a particular date or time that is the problem, but the listener's instantaneous stress response at the first bong. Having been involved with noise transmission problems every so often throughout my working life I know of distressing they can become for everyone involved. With ringing, every tower's circumstances are different and there cannot be a "one size fits all answer" when someone complains. However, you can be sure that minor tweaks to the duration of ringing periods ALONE is NOT the answer.