Inter-system call transfer
US6396909B1 · kind B1 · utility
9Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/53325
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A “high availability” telephony/messaging system includes a first host comprising a first telephony application, a second host comprising a second telephony application, and a TSP for routing calls on a plurality of telephone circuits to the first and second hosts, for processing by one of the first and second applications. An Inter-System Call Transfer process permits a call routed to an application on one host to be transferred to an application on another host. Therefore, a call routed to a host that is unable to process the call can be redirected to another host that is able to process the call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.