SECURE COMMUNICATIONS DEVICE

摘要

The invention relates to a compact single device designed to be installed in conjunction with any existing industry standard security alarm system. The compact single device is designed to use the power supply of the existing standard security alarm system and controls communication to a security alarm system monitoring server via existing communications infrastructure consisting of Internet Protocol (IP) data packets as a primary communications path and by Public Switched Telephone Network (PSTN) or Integrated Services Digital Network (ISDN) phone calls as a backup communications path.