[SR-Users] Topoh module & call leg/transaction does not exist
olli.attila at oatel.net
Fri Mar 3 14:50:56 CET 2017
The B party (IP: 18.104.22.168) is the one that sends the bye. A party
(IP: 22.214.171.124) will never see this bye because Kamailio (IP:
126.96.36.199) in the middle replies to B party with 481. The result is
that A partys softphone thinks the call is still online.
This can be seen on the kamailio_5-0_sip481.pcap trace.
On 2.3.2017 16:19, Daniel-Constantin Mierla wrote:
> the pcap file doesn't show the BYE coming from caller to proxy. There
> is only the BYE from proxy to callee. I need also the one coming to
> the proxy in order to see if the required headers are there.
> On 28/02/2017 21:47, Olli Attila wrote:
>> I'm still having this issue and now running the new Kamailio 5.0
>> branch. The pcap trace is attached to this email which shows the
>> whole sip conversation before and after topology hiding.
>> Has anyone stumbled upon this kind of "SIP 481 Call leg/Transaction
>> does not exist" error when routing BYE messages while using topoh
>> On 19.2.2017 23:23, Olli Attila wrote:
>>> I recently started testing topology hiding module on Kamailio and
>>> encountered a problem where B party hangs up, Kamailio can't
>>> identify the ongoing transaction to which the BYE should be related
>>> to and instead of tearing the call down Kamailio just sends back
>>> "481 Call leg/Transaction does not exist" to B party.
>>> On Kamailio config I have only enabled the topoh.so -module with
>>> default options and configured this to enable masking:
>>> modparam("topoh", "mask_callid", 1)
>>> Here is what the INVITE to B party looks like and the BYE message
>>> coming from the B party:
>>> When debugging on Kamailio end i get:
>>> Is this a Kamailio issue or a softphone issue on B party end?
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
> Daniel-Constantin Mierla
> www.twitter.com/miconda --www.linkedin.com/in/miconda
> Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) -www.asipto.com
> Kamailio World Conference - May 8-10, 2017 -www.kamailioworld.com
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
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