In order to effectively respond to any alarm, such as the activation of electronic security system, fire detector, sabotage, etc. (similarly also the activation of flood detectors or power outage), there must be available a method of communication with the user or with a contracted security guard service.
For this purpose there are SMS text notification modems for the communication with the user, or with the Alarm receiving centre (ARC); for more information see Chapter 9.5 SMS Communication.
The communication to the ARC is described in the following article.