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    <div class="moz-cite-prefix"><tt>Hi Miguel,<br>
        <br>
        The easiest way is to create dialog profiles per destination.
        Check docs:<br>
        &nbsp;&nbsp;&nbsp;
        <a class="moz-txt-link-freetext" href="http://www.opensips.org/html/docs/modules/1.11.x/dialog.html#id249293">http://www.opensips.org/html/docs/modules/1.11.x/dialog.html#id249293</a><br>
        and a simple similar example:<br>
        &nbsp;&nbsp;&nbsp;
<a class="moz-txt-link-freetext" href="http://www.opensips.org/Documentation/Tutorials-ConcurrentCallsLimitation">http://www.opensips.org/Documentation/Tutorials-ConcurrentCallsLimitation</a><br>
        <br>
        Regards,<br>
      </tt>
      <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
      On 23.06.2014 03:27, Miguel Oyarzo wrote:<br>
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cite="mid:CA+d2mV8z+BMC-sumseoYoRvHPkzGyfLfBKHtXdvyPpOa-+sNfg@mail.gmail.com"
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            Hi,<br>
            <br>
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          I would like to prevent two o more users calling the same
          destination number, at the same time. <br>
          Is there any way to check calls in progress AND if the
          destination number has already a call in progress, send back a
          '486 busy' code?<br>
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            <div>-- <br>
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                <div><span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">"Efficiency
                    is doing things right; effectiveness is doing the
                    right things</span><span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
                      (Peter Drucker)</span>"<br>
                  </span></div>
                <br>
                <div><span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Miguel
                    Oyarzo</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
                  <span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">DevOps
                    &amp; VoIP Engineer</span><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
                  <span
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Linux
                    User: # 483188 -&nbsp;</span><font color="#888888"
                    face="arial, sans-serif"><a moz-do-not-send="true"
                      href="http://counter.li.org" target="_blank">counter.li.org</a></font><br
style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
                  <span style="background-color:rgb(255,255,255)"><font
                      color="#888888" face="arial, sans-serif"><a
                        moz-do-not-send="true"
                        href="http://au.linkedin.com/in/mikeaustralia"
                        target="_blank">http://au.linkedin.com/in/mikeaustralia</a>&nbsp;</font><br>
                    <font color="#888888" face="arial, sans-serif">Melbourne,
                      Australia</font></span>
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      <pre wrap="">_______________________________________________
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