Hi,

The script snippet has nothing to do with the matching - it is about a 200-ok ACK to be matched by the dialog module and the TO-tag does not match at all.

The link to the trace expired, if you could repost.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
  https://www.siphub.com

On 12.03.2024 14:57, Alain Bieuzent wrote:

Hi all,

I am in the process of migrating my proxies from 3.3.9 to 3.4.4.

In 3.4 I find myself with a fault when I try to rewrite a final cause.

if (t_check_status("500"))

{

send_reply(503,"Service Unavailable");

exit;

          }

with 3.3 version, this code works perfectly, since 3.4 I have this error:

WARNING:dialog:dlg_onroute: tight matching failed for ACK with callid='67457c401e9ea52e2750100979253a7a@10.101.180.177:5060'/52, ftag='as5328cea7'/10, ttag='b5a7-2a346bb9d510da893a ee7cda850584cb'/37 and direction=1

WARNING:dialog:dlg_onroute: dialog identification elements are callid='67457c401e9ea52e2750100979253a7a@10.101.180.177:5060'/52, caller tag='as5328cea7'/10, callee tag='3919223738-770090972'/ 20

Has anyone encountered this error before?

Complete traces here : https://www.transfernow.net/dl/20240312qvAFfIAL.

Regards


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