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? -- WBR, Victor JID: coyote(a)bks.tv JID: coyote(a)bryansktel.ru I use FREE operation system: 3.8.4-calculate GNU/Linux