Security intercom system

Security intercom system integrates seamlessly with access-control and video-surveillance equipment. An industry-standard RS-232 interface allows for off-site programming and monitoring of software, as well as maintaining multiple exchanges from one personal computer. The system supports single-line telephone equipment with caller ID; it also allows users to forward calls manually or automatically throughout the system to telephones, cellular phones and pagers. Other features include “scan-monitoring” for automatic scrolling through substations for real-time audio monitoring. (TOA Electronics) Circle 9

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