Channel division control equipment of the ISDN primary rate interface circuit
US6507578B1 · kind B1 · utility
0Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/1322
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An ISDN primary rate interface circuit having a plurality of communication channels, includes a channel division controller. According to predetermined conditions, the channel division controller selects a communication channel out of the plurality of communication channels when generating or receiving a call. The channel division controller provides private branch exchange by enabling allocation of the selected communication channel to an extension group according to a predetermined condition when generating or receiving the call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.