Hello!

http://www.kamailio.org/docs/modules/4.1.x/modules/dialog.html

Read:

5.45. send_bye (int)

If set to 1, BYE requests will be sent out for each dialog that timed out. It is an alternative to $dlg_ctx(timeout_bye)=1 for all dialogs.

Default value is “0”.

Example 1.45. Set send_bye parameter

... modparam("dialog", "send_bye", 1) ...

Is "send_bye" has any relation with timeout-avp-id?

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