System and method for establishing a conference call
US7151753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2002 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2203/5063
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for establishing a conference call in an Internet Protocol (IP) telecommunications network between a conference owner and a plurality of other conference participants. The IP network includes a conference server and at least one Call State Control Function (CSCF). The CSCF includes a Presence and Instant Messaging (PIM) server that notifies the conference server when participants are present and available. A first user is registered with the conference server as the conference owner, and the owner identifies the conference participants and provides criteria for initiating the conference. The conference server identifies each participant's serving CSCF, and sends a request to A each CSCF to notify the conference server when served participants are present and available. When the predefined number of participants are present and available, the conference server initiates the conference call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.