Methods and apparatus for dual-tone multi-frequency signal analysis within a media over internet protocol network
US8031708B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Apr 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/1295
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes receiving a media signal associated with a session established based on a session request. The session request is defined at a session exchange device associated with a media over internet protocol (MoIP) network. The method also includes sending a portion of the media signal to a dual-tone multi-frequency (DTMF) analysis module during a sampling time period after a non-sampling time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.