When connecting the telephone clicks one or more times. What is the problem?
There is nothing wrong. Some Konftel telephones make this noise at the beginning of every call. Either once or three times. When this click occurs, a room calibration takes place to ensure that the telephone works perfectly in your room. When the click occurs three times, it is because the room has difficult acoustics, such as a long echo (longer than 0.5 seconds) or the level of background noise is louder than 45 dBA. Because of the environment, the telephone does not then provide optimal performance.