Method and apparatus for implementing feature assist on a telecommunication network
US6940846B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/428
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for the handling of calls by a packet-based telephony system by which calls invoking features not implemented on the packet-based system are handed off to an existing legacy circuit-switched telephony system for further processing. Initial address messages are forwarded to a packet network feature server, which determines whether the features invoked by the call can be provided. If not, the feature server assigns the call a trunk selection parameter according to the type of feature invoked. The trunk selection parameter is conveyed to a connection gateway, which routes the call on one of a plurality of voice trunks. The call is received by a circuit-switched switching system for further processing according to the feature invoked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.