Seamless Call Switching In A Dual Mode Environment
First Claim
1. A method for use by a mobile communication device in switching a voice call between two different wireless communication networks, the method comprising the steps of:
- maintaining voice communications for a voice call with a communication terminal through call control equipment, the voice call involving a traffic channel established between a first wireless network and the mobile device with use of a first transceiver portion which operates in accordance with the first wireless network;
causing a connecting call to be established with the communication terminal through the call control equipment based on identifying a predetermined condition, the connecting call involving a traffic channel established between a second wireless network and the mobile device using a second transceiver portion which operates in accordance with the second wireless network; and
after the connecting call is established, maintaining voice communications for the voice call over the traffic channel established between the second wireless network and the mobile device.
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Accused Products
Abstract
Methods and apparatus for providing a seamless switching of voice calls between different wireless networks are disclosed. In one illustrative example, a mobile communication device has a processor and one or more wireless transceivers coupled to the processor. The one or more wireless transceivers include a first transceiver portion operative in accordance with a first wireless network (e.g. a GSM/GPRS cellular network) and a second transceiver portion operative in accordance with a second wireless network (e.g. an 802.11 wireless network). A voice call is maintained between the mobile device and a communication terminal through call control equipment. The processor of the mobile device is operative to maintain voice communications for the voice call over a traffic channel established between the mobile device and the first wireless network using the first transceiver portion; cause a connecting call to be established with the communication terminal through the call control equipment in response to a predetermined condition, where the connecting call involves a traffic channel established between the second wireless network and the mobile device using the second transceiver portion; and after the connecting call is established, maintain voice communications for the voice call over the traffic channel established between the second wireless network and the mobile device.
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Citations
18 Claims
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1. A method for use by a mobile communication device in switching a voice call between two different wireless communication networks, the method comprising the steps of:
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maintaining voice communications for a voice call with a communication terminal through call control equipment, the voice call involving a traffic channel established between a first wireless network and the mobile device with use of a first transceiver portion which operates in accordance with the first wireless network; causing a connecting call to be established with the communication terminal through the call control equipment based on identifying a predetermined condition, the connecting call involving a traffic channel established between a second wireless network and the mobile device using a second transceiver portion which operates in accordance with the second wireless network; and after the connecting call is established, maintaining voice communications for the voice call over the traffic channel established between the second wireless network and the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile communication device, comprising:
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one or more processors; one or more wireless transceiver coupled to the one or more processors; the one or more wireless transceivers having a first transceiver portion operative in accordance with a first wireless network and a second transceiver portion operative in accordance with a second wireless network; the one or more processors being operative to; maintain voice communications for a voice call with a communication terminal through call control equipment, the voice call involving a traffic channel established between the first wireless network and the mobile device with use of the first transceiver portion; cause a connecting call to be established with the communication terminal through the call control equipment based on identifying a predetermined condition, the connecting call involving a traffic channel established between the second wireless network and the mobile device with use of the second transceiver portion; and after the connecting call is established, maintain voice communications for the voice call over the traffic channel established between the second wireless network and the mobile device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification