Cordless remote alarm transmission apparatus

摘要

A portable alarm system in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security devices, and the alarm is capable of initiating a telephone call to a security monitoring station either by conventional hard-wired telephone lines by cellular transmission, by 1900 megahertz PCS or by other wireless technology. The system may include a wireless/cordless line seizure feature to use a nearby landline if the system is plugged into a landline that has been disabled. The system may also include a vibration/shock sensor to activate the alarm functions if the portable unit is moved or attempted to be destroyed by an intruder.