Switching system with two-way line managing system
US5046181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/0016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A switching system having two-way lines connected between a primary office and an opposite office for communicating through a selected one of the two-way lines, and having a control unit for selecting one of the two-way lkines to be used for communication. To reduce double hunting of a two-way line, the control means comprises an outgoing connection process controlling unit for detecting a release of a two-way line activated by the primary office, an incoming connection process controlling unit for detecting a release of a two-way line activated by the opposite office, and a two-way line managing unit for deciding the priorities for selection of a plurality of two-way lines. The two-way line managing unit provides a different priority for selection to a released two-way line depending on whether the released two-way line had been activated by the primary office or by the opposite office.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.