Patent ID: 6594344
Filing Date: 2003-07-15
Classification: H04L,H04M

Abstract:
A method of measuring latency in a VoIP (Voice over Internet Protocol) network, comprising:establishing a call between a first telephony device and a second telephony device; exchanging, over a VoIP network, one or more signals between the telephony devices; measuring a baseline latency between at least one signal originating at the first telephony device and the signal as it arrives at the second telephony device, wherein the baseline latency is measured with a waveform analysis mechanism configured to monitor the at least one signal originating at the first telephony device and the signal as it arrives at the second telephony device, wherein the waveform analysis mechanism comprises an oscilloscope, the oscilloscope being a standalone device removably connected to the first telephony device and the second telephony device, the oscilloscope monitoring the signal originating at the first telephony device and the signal as it arrives at the second telephony device; establishing at least one additional call; measuring, with the oscilloscope, a second latency between a second signal originating at the first telephony device and the second signal as it arrives at the second telephony device when the at least one additional call is established; and comparing the baseline latency with the second latency.