Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-03-31
2008-08-12
Tsang, Fan (Department: 2614)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S555000
Reexamination Certificate
active
07412257
ABSTRACT:
Methods, systems, and computer program products for bridging mobile phone networks with other telephone networks. A telephone network comprises multiple individually addressable telephone lines connected to telephones and to a gateway, which in turn is connected to one or more mobile phones and potentially to one or more landlines. When the gateway receives an inbound call from one of the mobile phones, or an outbound call from one or the telephones, the gateway applies routing rules to determine how to route the call. Routing may depend on a variety of factors, such as time of day, cost, the mobile phone receiving an inbound call. To help identify the mobile phone as the source of an inbound call, a distinctive ring may be selected. To account for differences in the mobile phone network and the telephone network, the gateway translates signals between the two networks.
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Microsoft Corporation
Perkins Coie LLP
Sing Simon
Tsang Fan
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