Toll-free call origination using an alphanumeric call initiator
US7636430B2 · kind B2 · utility
4Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Mar 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13389
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Toll-free calls are initiated using an alphanumeric call initiator (NAME) that is communicated to the network using a short message service (SMS), electronic mail message, a Worldwide Web interface or a voice connection to a voice recognition database. The NAME is translated to retrieve a directory number used to connect a calling party with the toll-free service subscriber. The directory number may be a toll-free number used to invoke incumbent translation services in the PSTN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.