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    <div class="moz-cite-prefix"><tt>Hi Hamid,<br>
        <br>
        When there is an internal timeout, what happens is:<br>
        1) Opensips sends CANCEL to callee<br>
        2) OpenSIPS generates and internal 408 reply for that branch,
        reply that you can see in failure route<br>
        3) the received 487 from callee is absorbed by OpenSIPS (as a
        408 was already generated).<br>
        <br>
        So, if you do not do anything in failure route (like creating a
        new branch or sending your own reply back to callee), the 408
        will be sent to caller. <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 12.02.2015 08:30, Hamid Hashmi wrote:<br>
    </div>
    <blockquote cite="mid:BLU170-W132B9D7F41B5DA9AA16D864E0220@phx.gbl"
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      <div dir="ltr"><span style="color: rgb(68, 68, 68); font-size:
          15px; line-height: 21.2999992370605px; background-color:
          rgb(255, 255, 255);">Its my mistake :p </span>
        <div style="line-height: 21.2999992370605px; color: rgb(68, 68,
          68); font-size: 15px; background-color: rgb(255, 255, 255);"><br
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        <div style="line-height: 21.2999992370605px; color: rgb(68, 68,
          68); font-size: 15px; background-color: rgb(255, 255, 255);">fr_inv_timer
          timeout  sends CANCEL to Callee <b style="line-height:
            21.2999992370605px;">NOT</b> to Caller. But my call
          terminated due to response 487 came from Callee. I just droped
          the response 487 in onreply_route and its working for me. Is
          it a good practice ?
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          </div>
          <div style="line-height: 21.2999992370605px;">Regards</div>
          <div style="line-height: 21.2999992370605px;">Hamid R. Hashmi</div>
        </div>
        <br>
        <div>
          <hr id="stopSpelling">Date: Wed, 11 Feb 2015 22:19:21 +0200<br>
          From: <a class="moz-txt-link-abbreviated" href="mailto:bogdan@opensips.org">bogdan@opensips.org</a><br>
          To: <a class="moz-txt-link-abbreviated" href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>; <a class="moz-txt-link-abbreviated" href="mailto:hamid2kviii@hotmail.com">hamid2kviii@hotmail.com</a><br>
          Subject: Re: [OpenSIPS-Users] How to customize response on
          fr_inv_timer<br>
          <br>
          <div class="ecxmoz-cite-prefix">Hi Hamid,<br>
            <br>
            If you catch the 408 reply in failure route and create a new
            branch (to divert to another GW), there will be nothing sent
            back to UAC (caller) to inform about this timeout event.<br>
            <br>
            Regards,<br>
            <pre class="ecxmoz-signature">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" class="ecxmoz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
            On 10.02.2015 10:17, Hamid Hashmi wrote:<br>
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            cite="mid:BLU170-W121B9A30A1845F888CDF742E0240@phx.gbl">
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            <div dir="ltr">Hello, 
              <div><br>
              </div>
              <div>On fr_ivr_timer timeout opensips1.11 sends CANCEL to
                Caller and I handle the timout in failure route by 408
                sip response. May I change method CANCEL to some other
                response that can indicate a caller (UAC) that call is
                now diverting to another gateway so that Caller can wait
                more. </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div>failure_route[1]{</div>
              <div>.</div>
              <div>.</div>
              <div>.</div>
              <div><br>
              </div>
              <div>
                <div>    if (t_check_status("408")) {</div>
                <div>.</div>
                <div>.</div>
                <div>.</div>
                <div><span style="font-size:12pt;">                 if (
                    t_local_replied("last") ) {</span></div>
                <div>                        # timeout with replies
                  received -&gt; fr_inv_timer</div>
                <div>                        xlog("L_NOTICE",
                  "[$pr:$fU@$si:$sp]: Timeout on RING timer for '$rm'
                  from '$fu' to '$ru' after '$avp(5)' seconds \n");</div>
                <div>                         <span
                    style="font-size:12pt;">route(failover);</span></div>
                <div>                   }   </div>
                <div>      </div>
              </div>
              <div>    }</div>
              <div>.</div>
              <div>.</div>
              <div>.</div>
              <div>}</div>
              <div><br>
              </div>
              <div>Call failoverd to route[failover] but CANCELED due to
                fr_ivr_timer timout because it send CANCEL to Caller. </div>
              <div><br>
              </div>
              <div>Any solution ?</div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div>Regards</div>
              <div>Hamid R. Hashmi</div>
            </div>
            <br>
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            <pre>_______________________________________________
Users mailing list
<a moz-do-not-send="true" class="ecxmoz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a moz-do-not-send="true" class="ecxmoz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
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      <pre wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a class="moz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
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