Hi again <span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; white-space: pre-wrap; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">François,</span><div>
<font class="Apple-style-span" face="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></font></div><div><font class="Apple-style-span" face="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></font></div>
<div><font class="Apple-style-span" face="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></font></div><div><span class="Apple-style-span" style="font-size: 13px; "></span><font class="Apple-style-span" face="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></font></div>
<div><font class="Apple-style-span" face="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></font><div class="gmail_quote">On Wed, Jan 20, 2010 at 3:57 AM, François Legal <span dir="ltr"><<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><br></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><br></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><br>
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