Hello,<br><br>yes, CANCEL in stateful relaying are re-generated hop by hop. There is a way to propagate headers from invite to cancel via:<br><br><a href="http://kamailio.org/docs/modules/stable/modules/tm.html#ac_extra_hdrs">http://kamailio.org/docs/modules/stable/modules/tm.html#ac_extra_hdrs</a><br>
<br>Do you want to add own headers or is about the reason header -- this one is added with latest versions:<br><br><a href="http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_reason">http://kamailio.org/docs/modules/stable/modules/tm.html#local_cancel_reason</a><br>
<br>Cheers,<br>Daniel<br><br><div class="gmail_quote">On Wed, Feb 29, 2012 at 1:59 PM, Reda Aouad <span dir="ltr">&lt;<a href="mailto:reda.aouad@gmail.com">reda.aouad@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><font color="#3366ff"><font><font face="tahoma,sans-serif">Hi,</font></font></font><div><font color="#3366ff"><font><font face="tahoma,sans-serif"><br></font></font></font></div><div><font color="#3366ff"><font><font face="tahoma,sans-serif">insert_hf doesn&#39;t work for CANCEL messages. It doesn&#39;t work either on 487 replies in failure_route..</font></font></font></div>


<div><font color="#3366ff"><font><font face="tahoma,sans-serif">Why? Is it because they are re-generated on every hop?</font></font></font></div><div><font color="#3366ff"><font><font face="tahoma,sans-serif"><br></font></font></font></div>


<div><font color="#3366ff"><font><font face="tahoma,sans-serif">Is there a workaround?<span class="HOEnZb"><font color="#888888"><br clear="all"></font></span></font></font></font><span class="HOEnZb"><font color="#888888"><div dir="ltr">
<font color="#3366ff" face="tahoma, sans-serif"><br></font><div><font color="#3366ff" face="tahoma, sans-serif">Reda</font></div>

</div><br>
</font></span></div></div>
<br>_______________________________________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>
<a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>Daniel-Constantin Mierla<br>  <a href="http://www.asipto.com">http://www.asipto.com</a><br>