Method for signaling of a change from a first service to a second service during a call by modifying the utilized codec
US7899086B2 · kind B2 · utility
1Cited by
1References
24Claims
0Family size
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Key dates
| Filing date | Jan 24, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Feb 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for signaling a change from a first service to a second service during a call between a terminal device and a further terminal device over at least one communication network. When a change from the first service to the second service takes place during a call between the terminal device and the further terminal device, a network unit of the communication network, via which the terminal device is currently communicating to at least one further network unit, signals whether the change was initiated by the terminal device or by a network unit of the communication network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.