Hi Saúl / Vlad, I think your totaly right. I had a look at all Cancels in my sip traces and even Cancels coming in without a Reason header are coming out with a Reason header.
So my question should be: - can I disable the output of Reason headers / - a feature request for disableling the output of Reason headers in a Cancel request. I also tried to put the remove_hf in a local route, but the local_route did not give any output with debug 3: local_route { xlog("L_INFO", "********** ROUTE local_route ********** $rm $si\n"); append_hf("P-hint: Local_Route\r\n"); if(is_present_hf("Reason")) { xlog("L_INFO", " INFO : ***BEFORE*** delete Reason header\n"); remove_hf("Reason"); xlog("L_INFO", " INFO : ***AFTER*** delete Reason header\n"); } } So summing up to be clear (I hope): Our Cisco (S7 - ) sents a Cancel request to opensips: Session Initiation Protocol Request-Line: CANCEL sip:31201234...@sip.client.nl:5060 SIP/2.0 Message Header From: <sip:0622334...@sip.provider.nl>;tag=6CA89598-AD9 To: <sip:31201234...@sip.client.nl> Date: Fri, 16 Dec 2011 19:27:16 GMT Call-ID: cc46dcef-275211e1-b6f2f4ab-c7084...@sip.provider.nl CSeq: 101 CANCEL Max-Forwards: 70 Timestamp: 1324063688 Reason: Q.850;cause=16 Content-Length: 0 And opensips processes the request and sents this to the clients ATA: Session Initiation Protocol Request-Line: CANCEL sip:myusername@81.82.83.10:1030 SIP/2.0 Message Header From: <sip:0622334...@sip.opensips.nl>;tag=6CA89598-AD9 Call-ID: cc46dcef-275211e1-b6f2f4ab-c7084...@sip.provider.nl To: <sip:31201234...@sip.client.nl> CSeq: 101 CANCEL Max-Forwards: 70 Content-Length: 0 In the processed request the Reason header (above Content-Length) is filtered out. (left the Via records out). -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/reason-headers-tp7137781p7161373.html Sent from the OpenSIPS - Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users