Hi Alex,
answer inline below
Am 02.09.19 um 10:04 schrieb Alex Balashov:
just looked briefly into the code. There is only one place in the dialog module that ends a dialog with "dlg_bye_all" - and this happens in the dlg_ontimeout routine, if there is the proper flag set for the particular dialog.
Do you have the send_bye parameter set to 1 or use the $dlg_ctx(timeout_bye) PV? Is there any configured timeout that relates to the ~150s that you see in the module? It is always ~150s or does it change from call to call?
So you've set dhe dlg_bye_all parameter. Could you try to deactivate it just for a brief time and see if the problem does occur as well? Then we know at for sure that it is related to this functionality.
No, mysteriously there is not.
While the value of the timeout_avp can vary from call to call, in the case of these particular calls--and indeed, 95%+ of calls--it is set to 7200 sec. The default_timeout modparam is set to 28800 sec (8 hours).
The timeout period always seems to be 150-160 sec, but as you note, the arithmetical relationship between this period and any formally declared timeouts is a mystery.
Another idea , there is the dlg_clean_timer which is 90s. But this is still a bit off to your observed time period.
Maybe an additional timer is running before.
About the other topic - the matching mode: if there is an existing, but broken RR DID parameter, the code will stop processing and not try again the other match mode.
This is correct according the docs "1 - DID_FALLBACK - the match is first tried based on DID and if not present, it will fall back to SIP matching;", but could be changed to be more resilient, I agree.
Ah, I see. Well, "if not present" is a bit ambiguous from a layperson's perspective; in my case the cookie is present but incorrect and so does not match a known dialog, so I didn't know offhand if the code treat the parameter as though it were altogether absent, or whether it would treat it as present but wrong and abort processing as you suggest. :-)
Yes, this could be improved, I agree.
Cheers,
Henning