Conference call bridge arrangement
US6990081B2 · kind B2 · utility
30Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2001 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Oct 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user terminal (10) initiates an internet protocol using session initiation protocol to interconnect a number of user terminals (11–13) in a conference call. Signaling connections (41, 42, and 43) are established between one user terminal and each of the plurality of user terminals. Common bearer formats are negotiated among the plurality of user terminals (113). If a common bearer format exists (115), the conference bridge is established for data (voice) transmission (127).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.