Telephone with automatic switching between cellular and VoIP...

Details Telephone with automatic switching between cellular and VoIP... Telephone with automatic switching between cellular and VoIP...

2011-08-02

2011-08-02

Nguyen, Tu (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S574000

Reexamination Certificate

active

07991399

ABSTRACT:
A mobile communication device includes, in part, a cellular communication module, a first antenna adapted to receive and transmit data between the mobile communication module and a cellular network, a Wireless Fidelity (Wi-Fi) communication module, a second antenna adapted to receive and transmit data between the Wi-Fi communication module and a VoIP network, a signal monitoring circuit, and a switching circuit adapted to switch an existing communication from the cellular communication module to the Wi-Fi communication module or vice versa.

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