When monitoring non-visual alarm systems, it is not possible to see what has created the alarm. Therefore the response from the monitoring company can only be to call the homeowner or named key holders to confirm if the activation is genuine or a false alarm. With a visual verification monitored alarm system. the alarm receiving centre is able to physically see what has caused the system to go into alarm. Therefore if there is a crime in progress and it has been witnessed by the control room they do not have to waste time with trying to contact the homeowner, they can just move straight to calling the police. The police will then have to respond to that activation as a crime has been witnessed.