A monitored home alarm system is linked to an Alarm Receiving Centre (ARC). The alarm panel notifies the ARC if the alarm is triggered. The ARC then informs the key-holders of the property or the police, depending on the settings and other factors. An annual fee is billed for alarm monitoring, which is usually paid directly to the alarm company.
Residential Security Alarms with Police Response must fulfil certain standards, including the installation of a British and European standard graded alarm system and an annual maintenance contract with an approved alarm company.