System and method of transitioning between cellular and voice over internet protocol communication
First Claim
1. A method of forwarding a call from a mobile phone, the method comprising:
- determining that the mobile phone is within range of a wireless local area network base station with voice over internet protocol capability;
receiving an internet protocol address associated with the wireless local area network base station;
sending a call forwarding message including the internet protocol address from the mobile phone to a remote cellular network element of a wide area cellular network.
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Accused Products
Abstract
A multi-mode cellular and voice over internet protocol mobile device and a supporting network is disclosed. The mobile device includes a housing, an antenna, a wide area cellular communications module to provide wide area cellular communications, and a short-range wireless local area network module to provide a wireless communications interface to a wireless local area network having voice over internet protocol capability. In a particular embodiment, an internet protocol address managed by a wireless LAN base station is forwarded to and stored by the mobile phone device. In another embodiment, a method of forwarding a call from a mobile phone to a wireless LAN base station is disclosed. In another illustrative embodiment, a method of communicating from a wireless LAN base station to a mobile phone is disclosed. The method includes determining that the mobile phone is within range of a wireless LAN base station, connecting the mobile phone to the wireless LAN, including retrieving an internet protocol address, connecting the mobile phone to the voice over internet protocol (VoIP) provider, including retrieving an optional port number, and sending the internet protocol address and optional port number of the VoIP provider to the cellular provider as a request to forward calls for the mobile phone through the VoIP provider.
316 Citations
18 Claims
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1. A method of forwarding a call from a mobile phone, the method comprising:
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determining that the mobile phone is within range of a wireless local area network base station with voice over internet protocol capability;
receiving an internet protocol address associated with the wireless local area network base station;
sending a call forwarding message including the internet protocol address from the mobile phone to a remote cellular network element of a wide area cellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of communicating from a wireless local area base station to a mobile phone, the method comprising:
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determining that the mobile phone is within range of the wireless local area network base station, the wireless local area network base station having voice over internet protocol communications capability;
retrieving an internet protocol address and an optional port number associated with the wireless local area network base station from a memory; and
sending the internet protocol address and optional port number over a wireless fidelity communication link to the mobile phone. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A mobile phone device comprising:
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a housing;
an antenna attached to the housing;
a wide area cellular communications module disposed within the housing, the wide area cellular communications module having a cellular interface to communicate with a remote wide area cellular network; and
a short-range wireless local area network module disposed within the housing, the short-range wireless local area network module having a wireless interface to communicate with a wireless local area network having voice over internet protocol communications capability. - View Dependent Claims (15, 16, 17, 18)
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Specification