Selective fax transmission denial within a telephone network
US7653184B2 · kind B2 · utility
2Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jan 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/32745
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Whether a facsimile transmission tone is within a call is detected before routing the call from a switch of a telephone network to a first telephone line. When the facsimile transmission tone is detected, whether an incoming facsimile transmission transmitted by the call is permitted to be routed to the first telephone line is determined based at least partially on restriction information. Routing of the call from the switch to the first telephone line is denied when the incoming facsimile transmission is not permitted to be routed to the first telephone line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.