Security system using call display
US5511109A · kind A · utility
78Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1993 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Oct 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An improved alarm security system is disclosed which provides caller identification information when an alarm panel completes a telephone communication with a central computer. Such information is automatically provided by the telephone network upon initiation of a telephone communication. The central computer can use this information alone or in combination with other information received from the alarm panel to improve reliability and provide a more effective security system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.