Abstract: A system and method is disclosed for actively maintaining security of a premises. The method can include the operation of establishing a data link between a local security controller within the premises and a monitoring station located remote from the premises. A security data packet can be transmitted between the local security controller and the monitoring station at a predefined periodic rate. A check of the premises can be initiated if the monitoring station does not receive the security data packet within a predetermined time frame. Selected electronic neighborhood watch subscribers can be notified if the monitoring station does not receive the security data packet within the predetermined time frame.

Abstract: A plurality of audio message units are each comprised of a control circuit which receives intervaled timing pulses from a clock. The control circuit sends a start signal to a tape player. An audio detect circuit is connected to the audio output of the tape player and supplies a run and stop signal to the player through the control circuit upon the detection of an audio signal at the tape player output and its subsequent termination, respectively. Speakers are connected to the audio output of the tape player of each respective message unit to broadcast audio messages preprogrammed on the tapes of each tape player. A programmer for programming the tapes has a tape recorder with a microphone and a digital clock with means to set and incrementally advance displayed time to the time a particular message is to be broadcast by a particular audio message unit. The system may include a security message unit to broadcast audio messages reflecting the existence of a security violation.