Telephone line selector for use with a PBX
US4626627A · kind A · utility
5Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1983 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Oct 7, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device for use with executive and secretarial telephone units associated in a work group, having a programmable microprocessor which selectively controls the connection of incoming telephone lines to the secretarial telephone units and monitors the status of the telephone lines and provides such information to the secretarial telephone units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.