Invention Grant
US09191507B2 Apparatus and method for network initiated redial 有权
网络启动重拨的装置和方法

Apparatus and method for network initiated redial
Abstract:
A method for network initiated redial comprising the steps of receiving, at a network subsystem, from a first mobile device a request to establish a first call with a second mobile device at a time T0; notifying the first mobile device about an unsuccessful attempt of establishing the first call with the second mobile device; the method further comprises the step of registering, at the network subsystem, an unsuccessful first call attempt between the first mobile device and the second mobile device at a time T0; receiving, at a network subsystem, from the second mobile device a request to establish a second call with the first mobile device at a time T3; notifying the second mobile device about an unsuccessful attempt of establishing a second call with the first mobile device; registering, at the network subsystem, an unsuccessful second call attempt between the second mobile device and the first mobile device at a time T3; verifying whether there occurred a simultaneous or substantially simultaneous calls situation between the first call and the second call; establishing a network initiated call between the first mobile device and the second mobile device when there occurred a simultaneous or substantially simultaneous calls situation between the first call and the second call.
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