Patent ID: 8730852

Claim:
A method of decreasing false audio associated with voice over Internet protocol, the method comprising: receiving a false audio packet by an egress gateway, the false audio packet including false audio, the false audio being generated by misclassification of an initial portion of a dual-tone multi-frequency signal as a voice signal by an access gateway, the voice signal being transmitted over a communications network to the egress gateway; receiving a dual-tone multi-frequency packet by the egress gateway, the dual-tone multi-frequency packet being received subsequent to the false audio packet, the dual-tone multi-frequency packet being associated with a remaining portion of the dual-tone multi-frequency signal; deconstructing the false audio packet by the egress gateway to extract the false audio; replacing the false audio with a substitute signal by the egress gateway in response to deconstructing the false audio packet; and storing payload data representing the false audio in a buffer in response to deconstructing the false audio packet, wherein replacing the false audio in the false audio packet comprises replacing the payload data stored in the buffer with zeroes.