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Hello,<br>
<br>
are you sure you got the sip reply for the request?<br>
<br>
Apart of cseq number, all the other tokens are different, including
the via branch. Kamailio doesn't generate any callid or from-tag
when using sl_send_reply() or options_reply(), it reuses the ones
from request.<br>
<br>
if you still think it is the case of an issues, try:<br>
<br>
- add xlog() before sending the reply printing the call-id, from-tag
via header and cseq header<br>
- grab the pcap capture of such case<br>
<br>
Send the syslog messages and the pcap file here on mailing list so
we can analyze.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/08/15 10:41, Jean-Marie Baran
wrote:<br>
</div>
<blockquote cite="mid:55C863B3.7010104@ama.bzh" type="cite">
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Hi,<br>
<br>
I am trying to get Kamailio working with a third party SIP
provider. This provider pings Kamailio with OPTIONS messages, but
Kamailio does not answer correctly: the Call-ID and the tags
change where they should not. Here is an example:<br>
<br>
Third party SIP server:<br>
<br>
OPTIONS <a class="moz-txt-link-freetext" href="sip:false.sip.provider:5060">sip:false.sip.provider:5060</a> SIP/2.0<br>
Via: SIP/2.0/UDP 197.17.144.4:5060;branch=z9hG4bK8e45ac1463a<br>
From: <a class="moz-txt-link-rfc2396E" href="sip:197.17.144.4"><sip:197.17.144.4></a>;tag=1669836943<br>
To: <a class="moz-txt-link-rfc2396E" href="sip:false.sip.provider"><sip:false.sip.provider></a><br>
Date: Fri, 07 Aug 2015 12:34:37 GMT<br>
Call-ID: <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:a012e080-5c41a5ce-8e5-38512c6@197.17.144.4">a012e080-5c41a5ce-8e5-38512c6@197.17.144.4</a><br>
User-Agent: Cisco-CUCM10.5<br>
CSeq: 101 OPTIONS<br>
Contact: <a class="moz-txt-link-rfc2396E" href="sip:197.17.144.4:5060"><sip:197.17.144.4:5060></a><br>
Max-Forwards: 0<br>
Content-Length: 0<br>
<br>
Kamailio's answer:<br>
<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/UDP
197.17.144.4:5060;branch=z9hG4bK93e5f072f5f;received=174.37.217.1<br>
From: <a class="moz-txt-link-rfc2396E" href="sip:197.17.144.4"><sip:197.17.144.4></a>;tag=298911055<br>
To:
<a class="moz-txt-link-rfc2396E" href="sip:false.sip.provider"><sip:false.sip.provider></a>;tag=b27e1a1d33761e85846fc98f5f3a7e58.8c24<br>
Call-ID: <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:2defcb00-5c41aa17-93f-38512c6@197.17.144.4">2defcb00-5c41aa17-93f-38512c6@197.17.144.4</a><br>
CSeq: 101 OPTIONS<br>
Server: kamailio (4.3.1 (x86_64/linux))<br>
Content-Length: 0<br>
<br>
You can see that the Call-ID change from
"a012e080-5c41a5ce-8e5-38512c6" to
"2defcb00-5c41aa17-93f-38512c6". Likewise, the From tag change
("1669836943" to "298911055"). What could be the reason for this ?<br>
Moreover I think Kamailio should add the field Allow (with
INVITE,ACK,BYE,CANCEL,INFO,OPTIONS,REFER,SUBSCRIBE,NOTIFY), but it
does not.<br>
<br>
I should mention that I had to modify <i>kamailio.cfg</i> to have
Kamailio answer to OPTIONS messages (I added <b>the code in bold</b>):<br>
<br>
if (<b>!is_method("OPTIONS") && </b>!mf_process_maxfwd_header("10"))
{<br>
sl_send_reply("483","Too Many Hops");<br>
exit;<br>
}<br>
<br>
if(is_method("OPTIONS") && uri==myself &&
$rU==$null) {<br>
<b>#</b> sl_send_reply("200","Keepalive");<br>
<b>options_reply();</b><br>
exit;<br>
}<br>
<br>
Maybe this hack replaces an expected behavior that I failed to
see/configure ?<br>
<br>
Thanks,<br>
Jean-Marie.<br>
<br>
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<br>
<pre wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></pre>
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