Control and monitoring apparatus and method for a telephone system
US5924016A · kind A · utility
97Cited by
215References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1995 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | May 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone switching and control system connected to a telephone network for providing telephone calling services to an authorized user. The telephone switching and control system monitoring a telephone call placed via the control system to provide a additional feature not otherwise available in said telephone network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.