Patent ID: 8090077

Claim:
In a computing environment, a system comprising: a first telephone mechanism including a first telephone device having an audio coupling comprising audio input and output with a second telephone device of a second telephone mechanism, in which the first telephone device is arranged to detect sound at a microphone therein including audio output by a speaker of the second telephone device, and the second telephone device is arranged to detect sound at a microphone therein including audio output by a speaker of the first telephone device; analyzer logic that receives timestamps from the first telephone mechanism and the second telephone mechanism during a calling session, including a first timestamp corresponding to when the second telephone initially outputs audio to the first telephone, a second timestamp corresponding to when the first telephone mechanism initially detects sound, a third timestamp corresponding to when the first telephone mechanism initially outputs audio to the second telephone mechanism, and a fourth timestamp corresponding to when the second telephone mechanism initially detects sound, and wherein the analyzer logic determines that: a) the audio coupling is operating correctly with respect to not having interference or echo when the first timestamp is before the second timestamp, the second timestamp is before the third timestamp, and the third timestamp is before the fourth timestamp; b) the audio coupling has interference when the fourth timestamp is before the first timestamp, or when the second timestamp is before the first; or c) the audio coupling has echo when the fourth timestamp is before the third timestamp and after the first timestamp, or the second telephone detects its own audio at the fourth timestamp that it initially provided at the first timestamp, and wherein the results correspond to echo being detected at the second telephone mechanism.