Remote access telephone control system
US4893335A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1986 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Mar 20, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S379/914
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone control system connects to the telephone line from a telephone exchange. The control system includes a detector for detecting signals on the line, a signal generator for producing and applying control signals to the telephone line, memory for storing electronic signals and a central processor for monitoring signals on the line as detected by the detector, accessing the memory to produce and apply control signals to the signal generator. The control system is programmable to provide a variety of controllable functions to a remote user including activation of the conferencing/transferring function provided by the telephone exchange to allow a user to sequentially complete successive phone calls through the control system without the user hanging-up, or to redirect calls to pre-programmed, remotely controllable numbers. In addition, the control system is capable of receiving, storing and redirecting messages to pagers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.