Hello,

the callbacks are in the code, executed just after receiving and before sending to the network, I don't think there is no possibility to interact with the callbacks from the config file.

Having the possibility to turn on/off the cseq update likely requires some C coding, I don't remember by heart any way to do it right now, but I haven't had the time to check the code and refresh how is done to see if any workaround can be used at this moment.

Cheers.
Daniel

On 19.03.21 16:51, Tyler Moore wrote:
Hey kamailio team, 

When are the callbacks in the dialog module for updating $dlg_var(cseq_diff) called?
I am trying to dynamically enable / disable cseq updates (some specific carriers need it and some don't) by setting $dlg_var(cseq_diff)=$null prior to sending the request but it seems like the callback happens after relaying.
For example I tried various locations:
- prior to t_relay()
- in onreply_route[]
- in failure_route[]
- in event_route[tm:local-request]
- in event_route[tm:local-response]

I also tried setting modparam("dialog", "initial_cbs_inscript", 1) and calling dlg_manage() prior to routing and those didn't seem to be the right callbacks either.

Either the callback that updates $dlg_var(cseq_diff) occurs after t_relay() / forward() is called or setting $dlg_var(cseq_diff)=$null has no effect.

Is dynamically turning CSEQ updates on / off possible by overwriting $dlg_var(cseq_diff)?
Or would this require new logic in the dialog module to be supported?

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