ISDN modem capable of self-configuring to use one of a variety of pre-programmed ISDN protocols
US5864559A · kind A · utility
17Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0471
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An ISDN modem is preprogrammed to operate by any one of multiple ISDN protocols, and is provided with a setup program wherein, with the modem connected to an ISDN switch, the multiple protocols are automatically tested one-at-a-time until one is found by which a successful connection to the switch may be made, or until all fail. In the event a successful connection is made, that protocol in use at the time of the successful connection is selected for continued use. In the event that all preprogrammed protocols fail, a user is offered an input mechanism whereby an alternative protocol selection may be entered for trial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.