Communication systems and methods for switching communication services
US7580704B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Apr 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is a communication system including a first, a second, a third, and a fourth apparatuses, in which the first and the second apparatuses communicate with each other over a first communication service, and the third and the fourth apparatuses communicate with each other over a second communication service. The first apparatus has a first communication means, a setup information obtaining means, and a first connection requesting means. The second apparatus has a second communication means, and a second connection requesting means. The third apparatus has a third communication means, and a setup information sending means. The fourth apparatus has a fourth communication means and a connection processing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.