Patent Document ID: 8369491
Application ID: 12717702

Base Claim:
1. A method comprising: transmitting, by a server device, a call to a user device; receiving, by the server device and based on the call, a ring tone signal; receiving, by the server device, an indication that the call was answered, the indication including initial speech from an answering party associated with the user device; performing, by the server device, a ring tone operation to determine a human ring tone factor and a machine ring tone factor based on a duration of the ring tone signal; performing, by the server device, a speech filtering operation to determine a human speech factor and a machine speech factor based on a period of the initial speech; determining, by the server device, key words contained in the initial speech; performing, by the server device, a confidence filtering operation to determine a human confidence factor and a machine confidence factor based on the key words contained in the initial speech; determining, by the server device, a human total factor by combining the human ring tone factor, the human speech factor, and the human confidence factor; determining, by the server device, a machine total factor by combining the machine ring tone factor, the machine speech factor, and the machine confidence factor; determining, by the server device, that the answering party is a human when the human total factor is greater than the machine total factor; and outputting, to the user device, an interactive message when the answering party is determined to be the human.

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Claim 3:
3. The method of claim 1 , where performing the speech filtering operation to determine the human speech factor and the machine speech factor includes: computing the period of the initial speech by identifying a time from when the indication, that the call was answered, was received to an initial pause, the initial pause corresponding to an instant when the initial speech is no longer detected; determining the human speech factor based on the period of the initial speech; and determining the machine speech factor based on the period of the initial speech.