Ok. Then possibly you have a buggy UA that is tempering with RR. Try following,

1. Use dialog match mode 1.
2. Add dlg_manage after loose_route.

If problem persists then share sip trace of such call.

Hope this helps.



On Fri, 24 Jul 2020 at 16:33, Ilie Soltanici <iliusha.md@gmail.com> wrote:
Yes, I do use the Record-Route header and in the SIP Trace on Kamailio Server I can see the ACK/BYE Messages messages going through.

https://static.md/g/33oz9T#&gid=1&pid=1

În vin., 24 iul. 2020 la 11:46, Ilie Soltanici <iliusha.md@gmail.com> a scris:
Hello,

I'm trying to get CDR working in Kamailio by using the acc and dialog modules. Everything seemed to be working fine - until i noticed that for some of the calls the call duration is 0, even if that call has been successfully established and duration was for about a few minutes. In the Kamailio logs I'm getting such errors:

WARNING: dialog [dlg_handlers.c:1649]: dlg_ontimeout(): timeout for dlg with CallID '304bad142b50bb3a7a117816439ea3d5' and tags 'as3adde5c7' '7d28152f-e0e3-4bcf-9d5c-21c3723b95c5'
WARNING: acc [acc_cdr.c:230]: db_write_cdr(): fallback to dlg_only search because of message doesn't exist.

This error I'm getting at about 2 min after the ACK message for 200 OK. I'm not sure that this is related to the dialog timeout, but below you can see the related configuration for the dialog module:

modparam("dialog""default_timeout"10800# 3 hours
modparam("dialog""early_timeout"180)
modparam("dialog""noack_timeout"90)

Unfortunately, I'm not able to reproduce this issue, as that's happening randomly and just a few times per day. On the SIP Level i didn't notice any strange issues.

Any ideas why is that happening?
Thank you.
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