The Emergency voice communication unit having inbuilt telephone handset with volume controller for communication purpose during the emergency situation between controller room & floor. unit will support up to 92 zones, it is having inbuilt numeric keypad to support the zone wise/all call selection, reset button, PTT and Listen button for communication purpose. The particular zone willbe displayed in the LCD of EVCA2, during communication happening any other zone we can access other zone call also, it will work hasconferences system. EVCA2 have magnetic lock door. It is available with surface/table mounted module along with accessories.