Sheltered housing scheme communications system

Smoke detector using telephone link

Smoke detector with automatic dialing

Solutions for voice over internet protocol (VoIP) 911...

Strobe light and emergency call warning device with remote...

Subscriber control unit for united home security system

Supervised, interactive alarm reporting system

Supervised, interactive alarm reporting system

Supplemental data transmission system for a parallel, direct com

Surveillance arrangement and controller

Surveillance system having a voice verification unit

Switch bypass for a public safety calling system

Switch proxy for providing emergency stand-alone service in...

System and apparatus for providing telephone communication...

System and method for accessing personal information...

System and method for automatic location identification...

System and method for handling special number calls using...

System and method for location identification

System and method for monitoring individuals

System and method for notification of 911 telephone calls...