[Spce-user] Dummy interface causing inbound call failure

Andrew Pogrebennyk apogrebennyk at sipwise.com
Fri Sep 28 08:34:25 EDT 2018

see my comments inline.

On 09/25/2018 08:23 PM, Kevin Boddy wrote:
> When I have the sip_int type configured on the dummy0 interface then
> Kamailio seems to stop routing the inbound calls to my subscriber for
> some reason. It gives this error below.
> Sep 25 13:39:54 spce proxy[1958]: ERROR: sl [sl_funcs.c:362]:
> sl_reply_error(): stateless error reply used: I'm terribly sorry,
> server error occurred (6/SL)
Could you please send me the complete kamailio-proxy.log prior to this

>  If I move sip_int back to the localhost interface then everything
> works fine.
> Is this dummy0 interface still required for Audiocodes work around?
Does it work if you disable the dummy interface? What's your experience?

I have not tried recently, but before the calls from AC would be dropped
after 32 seconds because it is sending incorrect Route headers in the
ACK message.

You would notice that it's replacing with some other IP.  If
that is still a problem, however, there is another approach with mr6.4.1
and upcoming mr6.5.1, where we have topology hiding module enabled
(kamailio.lb.topos.enable in config.yml). Rather experimental but also
worth trying if you have an issue with Audiocodes.


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