[sr-dev] [kamailio/kamailio] dialog: set $rs when failed TCP send (#2867)

[Daniel-Constantin Mierla]

The $rs is for incoming SIP reply processing, no relation with tm or dialog module and I would keep it like that.

If event_route[dialog:failed] happens in the context of transmission error and the transaction fails, then you should be able to use $T(reply_code). So it should provide what you look for in this particular case.

Otherwise, event_route[dialog:failed] can be also executed with an internal faked msg, if it happens to be executed when no SIP traffic is handled.

You can eventually add a new attribute for $dlg_ctx():

  * https://www.kamailio.org/wiki/cookbooks/5.5.x/pseudovariables#dlg_ctx_attr
 
And you set its value based on whether a reply was received from the network, transaction failed and value of $T(reply_code) should be used, etc.

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