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Mobile Terminated IMS Calls on Devices Which Support Wi-Fi and Cellular Radios

  • US 20160174191A1
  • Filed: 09/30/2015
  • Published: 06/16/2016
  • Est. Priority Date: 12/12/2014
  • Status: Active Grant
First Claim
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1. A mobile device, comprising:

  • at least one antenna;

    a first radio, wherein the first radio is configured to perform cellular communication with a cellular base station using at least one cellular radio access technology (RAT);

    a second radio, wherein the second radio is configured to perform Wi-Fi communication with a Wi-Fi access point;

    at least one processor communicatively coupled to the first and second radios, wherein the mobile device is configured to perform voice and/or data communications;

    wherein the mobile device is configured to;

    establish communication with a cellular carrier over a Wi-Fi network;

    register, with an IMS server, a first IP address associated with the Wi-Fi network communication;

    register, with the IMS server, a second IP address associated with the communication with the cellular network;

    wherein, upon occurrence of a mobile terminating call received from the cellular carrier, an incoming call notification on the Wi-Fi network is transmitted to the mobile device using the first IP address and an incoming call notification on the cellular network is transmitted to the mobile device using the second IP address;

    wherein the mobile device is configured to receive and respond to at least one of the incoming call notifications.

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