Patent ID: 9094889
Filing Date: 2015-07-28
Classification: H04L,H04M,H04W

Abstract:
1. A method to select an operating mode of a mobile device, the method comprising: detecting a request for a call; determining by a processor of the mobile device a data usage limit; determining by a processor of the mobile device a cumulative amount of data sent using the data connection during a current billing period; determining, by a processor of the mobile device, an availability of a data connection; setting a communication mode of the mobile device depending upon the availability of the data connection and a comparison of the cumulative amount of data sent to the data usage limit; establishing a first call leg between the mobile device and a system controller, wherein the first call leg is by use of the set communication mode; establishing a second call leg between the system controller and a far-end terminal; and joining, by the system controller, the first call leg and the second call leg to produce the call.