Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS)
US7339924B1 · kind B1 · utility
18Cited by
69References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Multiservice Access Concentrator (MAC) provides a time limit for a first ringing voltage signal in response to an attempted call. The call is attempted via a voice over packet-data-network system (VOPS), wherein the VOPS comprises voice over Internet Protocol (IP), voice over Frame Relay, voice over Asynchronous Transfer Mode (ATM), and voice over High-level Data Link Control (HDLC) network systems. Generation of the first ringing voltage signal is terminated upon expiration of the time limit. A control message is transmitted to terminate the attempted call, wherein the control message is transmitted via the VOPS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.