Auditory alert and warning signals should be audible in all parts of the control room.
Additional Information:
The guideline applies to warnings that need to be heard by all members of the operating crew. Some signals may be pertinent to a particular functional role and therefore may need to be heard only at workstations supporting that function. Where there is a concern that important information might be missed if the workstation is temporary not staffed, a general alert can be added if there is no response at the workstation for a specified period.