Mobile device conference calls via private branch exchange
US7889849B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 21, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Communication systems and methods are described that enable mobile devices to route telephone calls via an enterprise telephone system. The communication system is configured to receive via a data channel a request from the mobile device. The mobile device corresponds to a user making a call. The server receiving the request includes a private branch exchange (PBX) and one or more other servers hosted by or coupled to the enterprise. A first call leg is initiated over a first voice channel in response to the request. The first call leg is coupled to the server and mobile device. Numerous second call legs are initiated over a second voice channel, and the second call legs are coupled to the server and numerous client devices corresponding to an intended call recipients. A voice conference call is formed between the mobile device and client device by joining the first and second call legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.