11C1 communicatietransport
contingency plans
rampenplannen
telephony
telefonie
02M3 sociale dienstverlening
info lines
infolijnen
telefonische hulpdiensten
telephone emergency services
emergency numbers
accidents
ongevallen
luchtalarm
(air raid) siren
alarmnummers
reporting and control rooms
meld- en regelkamers
alarm signals
alarmsignalen