<p>So I did modify mod_openzap to provide the od trace command to the cli. I started trying to parse the incoming clip, but I have to do it again as the incoming signal is saturated so I can't see anything interesting.</p>
<p> </p>
<p>I'll post my results whenever I get something.</p>
<p> </p>
<p>Shall I send the modified mod_openzap.c to the list ?</p>
<p>About the difference on the modulation settings for CLIP, could anybody suggest some way to have it configurable by files ?</p>
<p> </p>
<p>Thanks</p>
<p> </p>
<p>François</p>
<p> </p>
<p>On Wed, 20 Jan 2010 14:01:03 -0500, Moises Silva <moises.silva@gmail.com> wrote:</p>
<blockquote style="border-left: 2px solid #1010ff; padding-left: 5px; margin-left: 5px; width: 100%;"><!-- html ignored --><!-- head ignored --><!-- meta ignored -->
<p>Hi again <span class="Apple-style-span" style="font-family: arial; font-size: 13px; border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">François,</span></p>
<div><span class="Apple-style-span" style="font-family: arial,sans-serif;"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;"><br /></span></span></div>
<div><span class="Apple-style-span" style="font-family: arial,sans-serif;"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">Please keep the conversation in the freeswitch-dev mailing list, unless you want private paid support ;-)</span></span></div>
<div><span class="Apple-style-span" style="font-family: arial,sans-serif;"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;"><br /></span></span></div>
<div><span class="Apple-style-span" style="font-size: 13px;"><span class="Apple-style-span" style="font-family: arial,sans-serif;"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;">See the answer to your question below ...</span></span></span></div>
<div><span class="Apple-style-span" style="font-family: arial,sans-serif;"><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;"><br /></span></span>
<div class="gmail_quote">On Wed, Jan 20, 2010 at 3:57 AM, François Legal <span><<a href="mailto:devel@thom.fr.eu.org">devel@thom.fr.eu.org</a>></span> wrote:<br />
<blockquote class="gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;">
<p>Do you know if there is a way (except using an oscilloscope to sample the line signal) to get a dump of the data sent to the card by openzap (is it samples or something) and vice versa.</p>
<p> </p>
<p>What I would like to do is see what is returned to openzap when a call arrives on an FXO port (CLIP is working in that direction) and compare it to what is being sent to the card when sending CLIP to and FXS port.</p>
</blockquote>
</div>
<div>Once the call gets into the computer we're talking about digital audio samples. In a typical configuration a Sangoma board will give you 160 samples of audio each 20ms (most likely encoded in ulaw, that can be verified in /etc/wanpipe/wanpipex.conf for the FXO/FXS board, look at the TDMV_LAW parameter). </div>
<div></div>
<div>There is an openzap API command to record the digital audio read from the board, check ZAP_COMMAND_TRACE_INPUT and ZAP_COMMAND_TRACE_OUTPUT. What we currently lack is a FreeSWITCH command in mod_openzap to enable/disable the audio tracing. It should be trivial to hack mod_openzap.c and add that command, if you need help with that ping me on IRC (moy).</div>
<div></div>
-- <br />Moises Silva<br />Senior Software Engineer<br />Sangoma Technologies Inc. | 50 McIntosh Drive, Suite 120, Markham ON L3R 9T3 Canada<br />t. 1 905 474 1990 x 128 | e. <a href="mailto:moy@sangoma.com">moy@sangoma.com</a></div>
<div></div>
</blockquote>
<p> </p>