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<div class="moz-cite-prefix">Am 20.08.2015 um 03:16 schrieb Pete
Mundy:<br>
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<div>Ah cr@p, sorry Steve, didn't mean to top-post there.</div>
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<div>On 20/08/2015, at 5:23 AM, Markus Weiler <<a
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href="mailto:markus_weiler@mailworks.org"><a class="moz-txt-link-abbreviated" href="mailto:markus_weiler@mailworks.org">markus_weiler@mailworks.org</a></a>>
wrote:</div>
<blockquote type="cite">We started the 500 calls and
used milliwatt app on the first and record on the
second host to check the quality. Alternatively just
start 500+ calls and call yourself on top. So you can
get a good idea how the quality is.<br>
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<div>Markus</div>
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<div>That's a fascinating concept!</div>
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<div>Can you share any more about how you appraised the data
and determined your results?</div>
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<div>ie once you had the recordings on the second host what
did you do do computationally score them? Do you look at
the decoded (1khz?) waveform or do you appraise in another
way?</div>
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<div>Pete</div>
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Hi Pete,<br>
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we used different approaches. <br>
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Just to test the maximum channels a gateway can process the two
Methods are enough, you can either listen to the Recordings or look
at the waveform.<br>
The easiest approach is to call a colleague and gradually increase
the calls on the machine. <br>
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For systematic, continuous analysis Voipmonitor is a very useful
tool. <br>
We directed the traffic to a mirroring port on the Switch to which
we connected a Server running Voipmon.
(<a class="moz-txt-link-freetext" href="http://www.voipmonitor.org/">http://www.voipmonitor.org/</a>)<br>
Voipmon records the call and rates its quality. You can check the
results either using the commercial Web Interface (test for free) or
query the mysql DB.<br>
Unfortunately Voipmon tends to crash on a regular basis (at least
when we used it), but it's an awesome tool.<br>
The underlying tool pcapsipdump is running a lot more stable, but
you need to put a lot more work into it to get started.<br>
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hope i could help<br>
<br>
Markus<br>
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