How long are you waiting from the end of dialog until checking if it’s destroyed? Default is 5 minutes after termination (typically BYE) until the dialog is destroyed https://kamailio.org/docs/modules/5.5.x/modules/dialog.html#dialog.p.end_ti… Ben Kaufman Sr. VoIP Engineer P: E: bkaufman@nexvortex.com<mailto:bkaufman@nexvortex.com> 24 hour client support: 855.639.6300<tel:+18556396300> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Alex Balashov Sent: Thursday, July 8, 2021 3:00 PM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: Re: [SR-Users] Using the dialog module. dialog was not destroyed with BYE message Do you have a capture of the entire call flow? If the BYE or some other message is malformed or sent at the wrong time, the dialog module may not follow the state of the dialog to hangup. — Sent from my iPad On Jul 8, 2021, at 3:57 PM, woenho@gmail.com<mailto:woenho@gmail.com> wrote:  According to the documentation a dialog is automatically destroyed when a BYE is received. But, dialog was not destroyed. What can I do? I am testing with kamailio 5.5 version __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users