Apparatus, methods and systems for routing information from a packet-switched network to a mobile device communicating with a wireless telecommunications network
US6504839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus, methods and systems for routing information from a packet-switched network to a mobile device communicating with a wireless telecommunications network, wherein a call request for a mobile device is received from the packet-switched network at a first node of the wireless telecommunications network; a determination is made of the serving node of the wireless telecommunications network in communication with the mobile device and whether the serving node is coupled to the packet-switched network; and the call request is redirected to the serving node in response to an affirmative indication that the serving node is coupled to the packet-switched network. Alternatively, in response to a negative indication that the serving node is coupled to the packet-switched network, the call request is routed from the first node to the serving node through a circuit-switched network coupled intermediate to the first node and the serving node. The packet-switched network may be a network employing, for example, the Internet Protocol (IP), and the circuit-switched network may, be the Public Switched Telephone Network (PSTN), whereby calls originating from devices coupled to the Internet, o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.