<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-cite-prefix">Do you have T.38 via RTP ?<br>
      <br>
      If yes, just change your checks accordingly in order to make sure
      to fetch a T38 INVITE/RE-INVITE.<br>
      <br>
      <br>
      Daniel<br>
      <br>
      <br>
      <br>
      <br>
      On 06/20/2014 02:57 PM, Leopoldo Iglesia wrote:<br>
    </div>
    <blockquote
      cite="mid:11C210DB-E3F8-4448-A11F-D1C6347D0132@por-aire.es"
      type="cite">
      <meta http-equiv="content-type" content="text/html;
        charset=ISO-8859-1">
      <div><br>
        Why udptl???</div>
      <div><br>
        Leopoldo iglesia </div>
      <div><br>
        El 20/06/2014, a las 14:09, Daniel Grotti <<a
          moz-do-not-send="true" href="mailto:dgrotti@sipwise.com">dgrotti@sipwise.com</a>>
         escribió:<br>
        <br>
      </div>
      <blockquote type="cite">
        <div>
          <meta content="text/html; charset=ISO-8859-1"
            http-equiv="Content-Type">
          <div class="moz-cite-prefix">Hi,<br>
            If you want to discard all INVITEs with T38, you can try to
            add something like that in your
            /etc/ngcp-config/templates/etc/kamailio/proxy/proxy.cfg.customtt.tt2:<br>
            <br>
            <br>
            if(is_method("INVITE") && search_body("udptl"))<br>
            {<br>
               sl_send_reply("488", "Not Acceptable Here");<br>
               exit;<br>
            }<br>
            <br>
            before to send the invite to ROUTE_INVITE.<br>
            Then run "ngcpcfg apply".<br>
            <br>
            So, each INVITE/REINVITE with udpl in their body will be
            discarded.<br>
            <br>
            <br>
            Daniel<br>
            <br>
            <br>
            <br>
            <br>
            On 06/20/2014 01:35 PM, Daniel Grotti wrote:<br>
          </div>
          <blockquote cite="mid:53A41C97.7010403@sipwise.com"
            type="cite">
            <meta content="text/html; charset=ISO-8859-1"
              http-equiv="Content-Type">
            <div class="moz-cite-prefix">I have nothing ready to give
              you right now.<br>
              Basically on kamailio proxy you should match a Re-invite
              (using the "has_totag") and check if SDP contains t38
              headers/codec (just have a look how the T38 reinvite looks
              like).<br>
              So, if you receive a re-invite with T38 headers into SDP,
              just send back a 488 reply.<br>
              <br>
              Daniel<br>
              <br>
              <br>
              <br>
              <br>
              <br>
              On 06/20/2014 01:28 PM, Leopoldo Iglesia wrote:<br>
            </div>
            <blockquote cite="mid:53A41AE6.5090106@por-aire.es"
              type="cite">
              <meta content="text/html; charset=ISO-8859-1"
                http-equiv="Content-Type">
              <div class="moz-cite-prefix">Fine, how can I do this hack?
                cause endpoints is impossible to mod config, so they are
                rented and provisioned by an ftth operator.<br>
                <br>
                El 20/06/2014 13:23, Daniel Grotti escribió:<br>
              </div>
              <blockquote cite="mid:53A419B7.4020609@sipwise.com"
                type="cite">
                <meta content="text/html; charset=ISO-8859-1"
                  http-equiv="Content-Type">
                <div class="moz-cite-prefix">Hi,<br>
                  I think you need to avoid to forward the T38
                  Re-INVITE, so you should hack your SPCE in order to
                  reply to the T38 re-invite with a "488 Not acceptable
                  here", for example.<br>
                  So the sender SHOULD fallback to G711.<br>
                  Anyway, the best solution if you have endpoint with
                  t38 enabled but they don't work well, is to disable
                  t38.<br>
                  <br>
                  <br>
                  Daniel<br>
                  <br>
                  <br>
                  <br>
                  On 06/20/2014 01:15 PM, Leopoldo Iglesia wrote:<br>
                </div>
                <blockquote cite="mid:53A417ED.1010805@por-aire.es"
                  type="cite">
                  <meta http-equiv="content-type" content="text/html;
                    charset=ISO-8859-1">
                  <div class="moz-forward-container">
                    <table class="moz-email-headers-table"
                      cellpadding="0" cellspacing="0" border="0">
                      <tbody>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                        <tr>
                          <th align="RIGHT" nowrap="nowrap"
                            valign="BASELINE"><br>
                          </th>
                          <td><br>
                          </td>
                        </tr>
                      </tbody>
                    </table>
                    <br>
                    > But both endpoints support it, that is the
                    problem and the only > scenario when it fails, so
                    i want SPCE not to send Fax negotiation to >
                    endpoint,.<br>
                    <br>
                    <br>
                    <br>
                     El 20/06/2014 12:12, Daniel Grotti escribió:
                    >> Hi, >> that's strange, if one of the
                    endpoints try to switch to t38 and the >>
                    other endpoint doesn't support it, they should
                    fallback to G711. >> >> Daniel >>
                    >> >> >> >> >>
                    >> On 06/20/2014 01:33 AM, Leopoldo Iglesia
                    wrote: >>> How can I, blacklist t.38 to
                    avoid endpoints to try t38 negotiation? >>>
                    >>> When i call from ericcson ont to fax
                    capable endpoint, it try to >>> connect t38
                    fax and There is no voice. >>> >>>
                    Thanks >>> >>> Leopoldo iglesia
                    >>> >>>
                    _______________________________________________
                    >>> Spce-user mailing list >>> <a
                      moz-do-not-send="true"
                      class="moz-txt-link-abbreviated"
                      href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
                    >>> <a moz-do-not-send="true"
                      class="moz-txt-link-freetext"
                      href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
                    >> >>
                    _______________________________________________
                    >> Spce-user mailing list >> <a
                      moz-do-not-send="true"
                      class="moz-txt-link-abbreviated"
                      href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
                    >> <a moz-do-not-send="true"
                      class="moz-txt-link-freetext"
                      href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
                    > > <br>
                  </div>
                  <br>
                  <br>
                  <fieldset class="mimeAttachmentHeader"></fieldset>
                  <br>
                  <pre wrap="">_______________________________________________
Spce-user mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
</pre>
                </blockquote>
                <br>
                <br>
                <fieldset class="mimeAttachmentHeader"></fieldset>
                <br>
                <pre wrap="">_______________________________________________
Spce-user mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
</pre>
              </blockquote>
              <br>
              <br>
              <fieldset class="mimeAttachmentHeader"></fieldset>
              <br>
              <pre wrap="">_______________________________________________
Spce-user mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
</pre>
            </blockquote>
            <br>
            <br>
            <fieldset class="mimeAttachmentHeader"></fieldset>
            <br>
            <pre wrap="">_______________________________________________
Spce-user mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
</pre>
          </blockquote>
          <br>
        </div>
      </blockquote>
      <blockquote type="cite">
        <div><span>_______________________________________________</span><br>
          <span>Spce-user mailing list</span><br>
          <span><a moz-do-not-send="true"
              href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></span><br>
          <span><a moz-do-not-send="true"
              href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></span><br>
        </div>
      </blockquote>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
Spce-user mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>