Method of routing calls for a network of digital time-switched exchanges
US4831649A · kind A · utility
108Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/66
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of routing calls for a network of digital time-switched exchanges (A, B, C, D, E, F, D) interconnected by groups (18 to 28) of PCM time multiplex trunks, with each group ingterconnecting two exchanges. Each exchange establishes a utilization cost for each of the groups connected thereto. This cost is based on the busy fraction of the least busy trunk in the group of trunks under consideration and it is transmitted to all of the exchanges in the network in order to enable them to determine least cost paths for the calls that they are requested to set up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.