Packet concentrator and packet switching system
US5164937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Jul 12, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system are provided for concentrating calls for a packet switching system in a hierarchical communication network. A plurality of terminals communicate with an associated plurality of packet concentrators that, in turn, communicate with switching equipment. The system and method comprise initiating a call at a call terminal to be communicated to the packet concentrator and identifying the call terminal by associating a line number communicating the terminal with the concentrator with a first logical channel number for communication from the packet concentrator to the switching equipment. The logic channel number is recorded in association with the first number line at the packet concentrator whereby call communication back to the call terminal can be made on the proper line number by relating the line number with the logic channel line of the call and thereby avoiding the need to switch logic channels between the concentrator and the switching equipment to avoid costly call processing at the concentrator. Further benefits provided by executing of the general call processing at the switching equipment including tariff control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.