Combination telephone set and security panel monitor
Computer having emergency calling function and emergency...
Data communication device
Data transmission apparatus for use with a security system havin
Double annular ring speaker gasket
Emergency alarming apparatus
Emergency call system
Emergency information facsimile transmitter
Emergency intercommunication system for elevator
Emergency mobilization system
Emergency phone messaging system
Emergency telephone call notification service system and method
Emergency warning device for use in a party line telephone syste
Enhancement of a personal emergency response system
Event detection system with dialer intercept
Flexible multiprocessor alarm data processing system
Gun safe
Home voice mail and paging system using an answering machine and
Information gathering system for remotely monitoring and...
Infrared alarm system