System and method for providing telephone service having private branch exchange features in a voice-over-data network telephony system
US6804224B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/1245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for providing telephone service to a user of a telecommunications device using a data network service provider. The data network service provider has a local service host that is accessible by a local access identifier. A caller uses a telecommunications device to dial the local access identifier to connect to the local service host. In response to a prompt, the caller dials a telephone extension that identifies the callee's telecommunications device. The local service host receives the telephone extension and verifies that the callee is a subscriber. The local service host then retrieves the gateway nearest the callee telecommunications device and opens a voice-over-data channel between the callee and caller gateways. The telephone conversation then proceeds between the callee and caller telecommunications devices over a public switched telephone network connection to the caller gateway, the voice-over-data channel and the PSTN connection to the callee telecommunications device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.