In environments such as airports, multiple announcements from different sources are sometimes made simultaneously to overlapping zones. These can range from non-critical announcements to urgent calls for boarding or gate changes. The call stacking feature of the PRA-LSCRF license ensures that every important announcement is always broadcast to the relevant areas. A configurable option for time-shifted calls prevents audio feedback and also allows the operator to cancel incorrect or misspoken announcements. Watch our video to discover what call stacking is and how it works. For more information about our fully IP-based PRAESENSA public address system please visit: https://www.boschsecurity.com/gb/en/solutions/public-address-solutions/public-address-and-voice-alarm-systems/ip-public-address-pa-system-praesensa/