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<tt>Useful update: The actual culprit is the initial INVITE from the
SIP trunk, which is missing the "From" header. FreeSWITCH raises an
eyebrow and replies with 400 "Bad Request", while omitting the
header as well on the way back to OpenSIPS!</tt><br>
<pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 16.03.2016 11:27, Liviu Chircu
wrote:<br>
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<blockquote cite="mid:56E926FE.2000208@opensips.org" type="cite">
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<tt>Hi Dimitry!<br>
<br>
That errors suggests the "From" Header Field of the 400 negative
reply is missing! Best way to continue from here is to perform a
SIP trace on this scenario, so you can confirm this yourself
before starting to fix it.<br>
</tt>
<pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 15.03.2016 14:48, Nagorny, Dimitry
wrote:<br>
</div>
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<p class="MsoNormal">Good afternoon Ladies and Gentlemen,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to use OpenSIPS as a Border
Controller between a PSTN and a FreeSWITCH. The PSTN is
sending all SIP-messages through a SIP-trunk.<o:p></o:p></p>
<p class="MsoNormal">I got OpenSIPS working fine from PSTN
through OpenSIPS to FreeSWITCH, but the other way around
(from FS over OpenSIPS to PSTN), I’m getting an error
message I can’t solve. (Info: There are NO phones registered
with OpenSIPS or FreeSWITCH, they are all on the PSTN, I
need OpenSIPS only to guide traffic to either my FreeSWITCH
mediaserver or tot he Aus @ PBX.)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As far as I can tell, when OpenSIPS opens
up a new branch it is changing internally the headers from
the incoming SIP-message from FreeSWITCH into a wrong format
and after that it’s throwing two errors:<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">-<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]-->ERROR:tm:send_ack:
failed to generate a HBH ACK if key HFs in reply missing <br>
ERROR:tm:reply_received: failed to send ACK (local=no)<o:p></o:p></p>
<p class="MsoListParagraph"
style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0
level2 lfo1">
<!--[if !supportLists]--><span
style="font-family:"Courier New""><span
style="mso-list:Ignore">o<span style="font:7.0pt
"Times New Roman""> </span></span></span><!--[endif]-->Here
I looked at the relevant code but I can’t tell what it is
trying to do in the transaction module<o:p></o:p></p>
<p class="MsoListParagraph"
style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0
level2 lfo1">
<!--[if !supportLists]--><span
style="font-family:"Courier New""><span
style="mso-list:Ignore">o<span style="font:7.0pt
"Times New Roman""> </span></span></span><!--[endif]-->As
well I couldn’t find info about the abbreviation „HBH“ or
„HF“<o:p></o:p></p>
<p class="MsoNormal">Additionally this piece of info:<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">-<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]-->…
SIP/2.0 400 Bad Request..Warning: 399 192.168.1.30
"Malformed headers : From " …<o:p></o:p></p>
<p class="MsoListParagraph"
style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0
level2 lfo1">
<!--[if !supportLists]--><span
style="font-family:"Courier New""><span
style="mso-list:Ignore">o<span style="font:7.0pt
"Times New Roman""> </span></span></span><!--[endif]-->From
this somehow I found out that it’s missing the “:“ after
From<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please see the attached files for more
info.<br>
I would very much appreciate it if somebody could give me,
at least, a hint how I could fix the problem, because by now
I googled these problems for three days now w/o a solution.
I can’t attach the full debug, the mail list blocks the size
of it (17KB…). I’ll attach it to an answer.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks in advance for any help I can get!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:DE">Very
Respectfully<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="mso-fareast-language:DE">Dimitry
Nagorny<o:p></o:p></span></b></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;mso-fareast-language:DE">Trainee<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;color:#4BA829;mso-fareast-language:DE">robot</span><span
style="font-size:8.0pt;color:#004994;mso-fareast-language:DE">5</span><span
style="font-size:8.0pt;mso-fareast-language:DE"> GmbH <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><u><span
style="font-size:8.0pt;mso-fareast-language:DE">_____________________________________________________________<o:p></o:p></span></u></p>
<p class="MsoNormal"><span
style="font-size:8.0pt;color:#7F7F7F;mso-fareast-language:DE"
lang="EN-US">This message is confidential and may contain
privileged information.<br>
If you are not the above named addressee or authorized to
receive this<br>
message on behalf of the addressee, please advise the
sender immediately<br>
and delete this message. Any unauthorized copying,
disclosure or<br>
distribution of the information in this e-mail is strictly
forbidden.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<pre wrap="">_______________________________________________
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