Call routing system and method
US7031450B2 · kind B2 · utility
9Cited by
12References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/1285
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system is provided wherein routing information is obtained from previously cached information or from a gatekeeper. An originating gateway in a network receives a request for a connection and determines whether pertinent routing information is cached. If available, the cached routing is used to attempt to establish a connection. If no previously established routing is available, the originating gateway requests preferred routing from a gatekeeper, including prioritized selections of terminating gateways through which to make a connection to a designated call recipient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.