ISDN callback with initial call reject
US6717918B1 · kind B1 · utility
1Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13389
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique for processing a telephone call from a calling party without accepting the call and subsequently, in response, initiating a call to the calling party. Utilizing this technique on an ISDN connection in which a customer is connected to an Internet Service Provider, calls initiated by the Internet Service Provider will not be answered by the customer, but the customer will be alerted and, in response, will place a call to the Internet Service Provider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.