Phone-independent key expansion module
US7991150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Nov 7, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A button box provides additional keys that can be used in conjunction with a telephone. In one embodiment, a button box is configured by associating it with a telephone and by programming its keys. When a key on the button box is activated, a key press event is sent from the button box to the associated phone. The phone treats the key press event as if a key on the phone itself had been activated and forwards the event to the voice switch appliance associated with the phone. (Alternatively, the key press event is sent from the button box directly to a voice switch appliance.) The button box's user interface is controlled by a voice switch appliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.