Patent ID: 8300536

Claim:
A method for reporting a quality of a voice transmission over a Voice over Internet Protocol (VoIP) network from at least one destination device to a source call device, comprising: receiving, at the at least one destination device, at regular time intervals during a call from a user, a digital signature from the source call device, wherein the user of the source call device initiated the call and provides a voice stream, wherein the digital signature is generated using the voice stream of the user; comparing the received signature to a reference signature stored on the at least one destination device, wherein the reference signature contains a predefined range of threshold values to determine the quality level of the voice transmission; transmitting a quality indication message in real time to the user of the source call device who provided the voice stream when the received signature falls outside of the predefined range of the threshold values of the reference signature; and discarding the received digital signature when the received signature falls within the predefined range of the threshold values of the reference signal.