Hi Dimitry!
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.
Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com
On 15.03.2016 14:48, Nagorny, Dimitry wrote:
Good afternoon Ladies and Gentlemen,
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.
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.)
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:
-ERROR:tm:send_ack: failed to generate a HBH ACK if key HFs in reply
missing
ERROR:tm:reply_received: failed to send ACK (local=no)
oHere I looked at the relevant code but I can’t tell what it is trying
to do in the transaction module
oAs well I couldn’t find info about the abbreviation „HBH“ or „HF“
Additionally this piece of info:
-… SIP/2.0 400 Bad Request..Warning: 399 192.168.1.30 "Malformed
headers : From " …
oFrom this somehow I found out that it’s missing the “:“ after From
Please see the attached files for more info.
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.
Thanks in advance for any help I can get!
Very Respectfully
*Dimitry Nagorny*
Trainee
robot5GmbH
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