[SR-Users] Issue of calls drop 32s
Daniel-Constantin Mierla
miconda at gmail.com
Wed May 20 09:15:25 CEST 2020
Hello,
the contact in 200ok (as well as INVITE) have GRUU addresses, not the
end point IP:PORT. For INVITE, you do set_/add_contact_alias(), but it
is not done for 200ok.
If you enabled GRUU for registrar module, it should work without
set_contact_alias(), by doing lookup("location") for requests within
dialog. If the GRUU is done by devices without being enabled in
Kamailio, try with set_contact_alias() for 200ok.
Then, do not forget to use handle_ruri_alias() for requests within dialog.
Cheers,
Daniel
On 19.05.20 09:36, Rex Lin (林昱頡) wrote:
>
> Hi Daniel,
>
>
>
> Thanks for your reply.
>
> Please refer to the attached output file from Homer which I replaced a
> few words.
>
>
>
>
>
> Best Regards,
>
> Rex
>
>
>
> *From:*Daniel-Constantin Mierla <miconda at gmail.com>
> *Sent:* Tuesday, May 19, 2020 1:53 PM
> *To:* Kamailio (SER) - Users Mailing List
> <sr-users at lists.kamailio.org>; Rex Lin (林昱頡) <Rex.Lin at quantatw.com>
> *Subject:* Re: [SR-Users] Issue of calls drop 32s
>
>
>
> Hello,
>
> you have to provide the PCAP (or ngrep output) for such a call taken
> on kamailio system to see the headers of each sip message and try to
> understand where the issue is.
>
> Cheers,
> Daniel
>
> On 18.05.20 09:38, Rex Lin (林昱頡) wrote:
>
> Hi,
>
>
>
> Do you need further information? Actually, I am not sure if the
> process is normal, there‘s no problem with the call at least.
>
> Could it be caused any problem if all clients do fix_nated_register?
>
>
>
>
>
> Best Regards,
>
> Rex
>
>
>
> *From:*Rex Lin (林昱頡)
> *Sent:* Friday, May 15, 2020 2:37 PM
> *To:* Kamailio (SER) - Users Mailing List
> <sr-users at lists.kamailio.org> <mailto:sr-users at lists.kamailio.org>
> *Subject:* Re: [SR-Users] Issue of calls drop 32s
>
>
>
> Hi Alex,
>
>
>
> Thanks for your reply.
>
> ICE/STUN haven’t been activated by our clients. All transmission
> traffic pass through a proxy server. Below is the screenshot of a
> normal call process.
>
>
>
>
>
>
>
> Best Regards,
>
> Rex
>
>
>
> -----Original Message-----
> From: sr-users <sr-users-bounces at lists.kamailio.org
> <mailto:sr-users-bounces at lists.kamailio.org>> On Behalf Of Alex
> Balashov
> Sent: Thursday, May 14, 2020 12:18 AM
> To: Kamailio (SER) - Users Mailing List
> <sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>>
> Subject: Re: [SR-Users] Issue of calls drop 32s
>
>
>
> It's a tell-tale sign of an end-to-end ACK from the caller not
> being forwarded properly to the callee. The server should not be
> forwarding such an ACK "to itself"; this suggests that its Request
> URI may be improperly constructed (it should be equivalent to the
> remote Contact URI of the callee in the 200 OK message), or that
> its Route headers are somehow incorrect (they should mirror the
> Record-Route set in the 200 OK).
>
>
>
> -- Alex
>
>
>
> On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
>
>
>
> > Hi,
>
> >
>
> >
>
> > It’s weird that the calls always drop after 32s while the callee is
> using public ip. Also, Server forwards ACK to itself with UDP,
> instead of forwarding to callee with TLS.
>
> >
>
> >
>
> > Moreover, I cannot see “Received”in AOR as the callee finish the registration.
>
> >
>
> >
>
> > I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(),
> the problem can be resolved.
>
> >
>
> >
>
> > My scenario is as below, for your reference.
>
> >
>
> > 1.Kamailio version is 4.4.7, listening public ip.
>
> >
>
> > 2.Caller it’s behind NAT.
>
> >
>
> > 3.Clients of Linphone.
>
> >
>
> >
>
> > Do you know the reason why it happened?
>
> >
>
> >
>
> >
>
> > Best Regards,
>
> >
>
> > Rex
>
>
>
> > _______________________________________________
>
> > Kamailio (SER) - Users Mailing List
>
> > sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
>
>
>
> --
>
> Alex Balashov | Principal | Evariste Systems LLC
>
>
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
> <http://www.csrpswitch.com/>
>
>
>
> _______________________________________________
>
> Kamailio (SER) - Users Mailing List
>
> sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
>
>
>
> _______________________________________________
>
> Kamailio (SER) - Users Mailing List
>
> sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
> --
> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
> www.twitter.com/miconda <http://www.twitter.com/miconda> --
> www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
> Funding: https://www.paypal.me/dcmierla
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
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