Patent ID: 8248226

Claim:
A security system for monitoring security at a premises comprising: a premises controller located at the premises; a plurality of audio sensors located at the premises and spaced apart from the premises controller, each audio sensor receives audio signals and converts the audio signals to digitized audio signals, each audio sensor including a microphone, a memory storing false alarm digital signatures, and a processor being operative to compare a digitized audio signal received by the audio sensor with the stored false alarm digital signatures stored within said memory to determine whether an alarm condition exists and in the event of the alarm condition being operative to make the digitized audio signal available to the premises controller; and a central monitoring station located remote from the premises that receives the digitized audio signals from the premises controller and converts the digitized audio signals into audible audio for an operator that is monitoring the premises, wherein at least one of the stored false alarm digital signatures is provided from the central monitoring station.