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    Hi Juan Antonio, <br>
    We are looking into this and will get back to you in a day or two. <br>
    <br>
    David<br>
    <br>
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            <td valign="middle"><strong>David Yat Sin, BEng</strong><br>
              <font style="font-style: italic; font-weight: bold;"
                color="#80b0d6">Software Engineer</font><br>
              Sangoma Technologies<br>
              100 Renfrew Drive, Suite 100, Markham, ON L3R 9R6 Canada</td>
            <td valign="middle"><br>
              <br>
              t.&nbsp;&nbsp; +1 800 388 2475 x119&nbsp; <br>
              t.&nbsp;&nbsp; +1 905 474 1990 x119&nbsp; <br>
              f.&nbsp;&nbsp; +1 905 474 9223</td>
            <td rowspan="2" valign="middle"><a
href="http://www.sangoma.com/contact?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"><img
                  src="cid:part1.09040101.08010307@sangoma.com"
                  alt="SANGOMA" align="right" border="0"></a></td>
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href="http://sangoma.com/products?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Products</a>
              | <a
href="http://sangoma.com/solutions?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Solutions</a>
              | <a
href="http://sangoma.com/about_us/events?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Events</a>
              | <a
href="http://www.sangoma.com/contact?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Contact</a>
              | <a
href="http://wiki.sangoma.com/?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Wiki</a>
              | <a
href="http://www.facebook.com/pages/Sangoma-VoIP-Cards/43578453335?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Facebook</a>
              | <a
href="http://www.twitter.com/sangoma?utm_source=signature&amp;utm_medium=email&amp;utm_campaign=email%2Bsignatures"
                style="color: rgb(128, 176, 214);" target="_blank">Twitter</a></td>
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    <br>
    On 11/18/2010 3:50 PM, Juan Antonio Iba&ntilde;ez Santorum wrote:
    <blockquote
      cite="mid:AANLkTi=3RuKF9YzGmvz=Xcga4zdH6_eOod7H0XMd=Kyn@mail.gmail.com"
      type="cite">Hello boys!
      <div><br>
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      <div>&nbsp;&nbsp; I have one problem after updating from openzap to freetdm.
        Now, whe FS receives 'Proceeding' from PRI sends a SIP 180 which
        makes the phone to play a fake ring tone. After some seconds,
        when FS receives 'Alerting' from PRI, FS sends a SIP 183 with
        the real ring tone.</div>
      <div><br>
      </div>
      <div>Is there any way to avoid first SIP 180? If the calle is
        busy, I can hear a ringing tone between SIP 180 and SIP 183 and
        a busy tone after SIP 183. Same if calle is a mobile phone and
        it is out of signal.</div>
      <div><br>
      </div>
      <div>Regards</div>
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