ECHO is has announced that it is now supporting almost 200,000 Intruder and Hold-Up Alarm systems on police response with URNs (Unique Reference Numbers). Launched last year, following extensive development, ECHO provides virtually instant alarm signalling to police control rooms from approved Alarm Receiving Centres (ARCs) who remotely monitor premises protected by Intruder and Hold-Up alarm systems. Transforming the speed with which police can respond to c...