Security and fire control system

摘要

A remote surveillance and conferencing system includes video transceivers and provides audiovisual communications over a standard Public Switched Telephone Network (PSTN). The system provides capabilities for closed circuit television (CCTV) applications, security systems, video conferencing, remote video surveillance, home automation and fire control, all in one, without requiring a use of computer. Each video transceiver includes a dedicated keypad which allows users to use the system without a telephone. Keypad controllers available to some of the video transceivers provide a capability to remotely control the system.