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    <tt>Hi Vic,<br>

      <br>

      It seems your provider is truncating your RR header....and there

      is no much you can do about that (except changing it :) ).<br>

      <br>

      As I see you do FROM and TO changing and dialog support, I suggest

      to upgrade to 1.8 where the TO and FROM changing is done based on

      dialog and not RR hdr, so your header eill not have the vsf and

      vst params -&gt; much shorter.<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>

    <br>

    On 11/26/2012 09:22 AM, ã„¨å†·seç¬ wrote:

    <blockquote cite="mid:tencent_778714644C4773C77DD1B5D8@qq.com"

      type="cite">

      <div>HI:</div>

      <div>Â  Â I use opensips 1.6.4 and when I send an INVITE to my sip

        Â providers.</div>

      <div>Â  Â the Â Record-Route is like this:</div>

      <div><a class="moz-txt-link-rfc2396E" href="sip:172.30.74.8:5061;lr;ftag=c125dc5b;nat=yes;vsf=AAAAAAAAAAAAAAAAAFJUHEtAX01UGk1XVw8FBgcx;vst=AAAAAAAAAAAAAAAAAAAAAFJRHktCVlZNH1NZQwgBBAwEMDY4;did=939.152e438">&lt;sip:172.30.74.8:5061;lr;ftag=c125dc5b;nat=yes;vsf=AAAAAAAAAAAAAAAAAFJUHEtAX01UGk1XVw8FBgcx;vst=AAAAAAAAAAAAAAAAAAAAAFJRHktCVlZNH1NZQwgBBAwEMDY4;did=939.152e438&gt;</a></div>

      <div><br>

      </div>

      <div>Â  but my sipÂ providers send a 180Ringing withÂ Â Record-Route

        is like this:</div>

      <div><a class="moz-txt-link-rfc2396E" href="sip:172.30.74.8:5061;lr;ftag=c125dc5b;nat=yes;vsf=AAAAAAAAAAAAAAAAAFJUHEtAX01UGk1XVw8FBgcx">&lt;sip:172.30.74.8:5061;lr;ftag=c125dc5b;nat=yes;vsf=AAAAAAAAAAAAAAAAAFJUHEtAX01UGk1XVw8FBgcx&gt;</a></div>

      <div>Â </div>

      <div>Â  There is no did param.It seem to cause this dialog hangup

        error.</div>

      <div>Â  regards!</div>

      <div><br>

      </div>

      <div><br>

      </div>

      <div><br>

      </div>

      <div>vic.xiang</div>

      <pre wrap="">

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