It seems not startup issue. I add [usrloc:contact-expired] hook 11:58:31 kamailio started, then i register/unregister my endpoint and check it status for all workers. After one of unregister integrity was missed and continued up to [usrloc:contact-expired] fire ("usrloc", "timer_interval") ``` Oct 13 12:31:24 kamailio[32018] registered Oct 13 12:31:24 kamailio[32016] registered Oct 13 12:31:24 kamailio[32022] NOT registered Oct 13 12:31:24 kamailio[32025] NOT registered Oct 13 12:31:26 kamailio[32023] registered Oct 13 12:31:26 kamailio[32022] NOT registered Oct 13 12:31:26 kamailio[32016] registered Oct 13 12:31:26 kamailio[32020] NOT registered Oct 13 12:31:26 kamailio[32015] registered Oct 13 12:31:26 kamailio[32025] NOT registered Oct 13 12:31:26 kamailio[32018] registered Oct 13 12:31:26 kamailio[32028] registered Oct 13 12:31:28 kamailio[32015] registered Oct 13 12:31:28 kamailio[32018] registered Oct 13 12:31:28 kamailio[32022] NOT registered Oct 13 12:31:28 kamailio[32028] registered Oct 13 12:31:28 kamailio[32025] NOT registered Oct 13 12:31:28 kamailio[32020] NOT registered Oct 13 12:31:28 kamailio[32023] registered Oct 13 12:31:28 kamailio[32016] registered Oct 13 12:31:30 kamailio[32023] registered Oct 13 12:31:30 kamailio[32025] NOT registered Oct 13 12:31:30 kamailio[32018] registered Oct 13 12:31:30 kamailio[32015] registered Oct 13 12:31:30 kamailio[32020] NOT registered Oct 13 12:31:30 kamailio[32022] NOT registered Oct 13 12:31:30 kamailio[32028] registered Oct 13 12:31:30 kamailio[32016] registered Oct 13 12:31:32 kamailio[32022] NOT registered Oct 13 12:31:32 kamailio[32020] NOT registered Oct 13 12:31:32 kamailio[32016] registered Oct 13 12:31:32 kamailio[32025] NOT registered Oct 13 12:31:32 kamailio[32018] registered Oct 13 12:31:32 kamailio[32015] registered Oct 13 12:31:32 kamailio[32028] registered Oct 13 12:31:32 kamailio[32023] registered Oct 13 12:31:33 kamailio[32030] INFO: <script>: 123 [usrloc:contact-expired] expired contact for sip:000*090@siptest.ringme.ru; count: 1; callid: X9ZGbOyc58D6o4vRl806FZq7KEYqVDgI Oct 13 12:31:34 kamailio[32018] NOT registered Oct 13 12:31:34 kamailio[32028] NOT registered Oct 13 12:31:34 kamailio[32025] NOT registered Oct 13 12:31:34 kamailio[32016] NOT registered Oct 13 12:31:34 kamailio[32023] NOT registered Oct 13 12:31:34 kamailio[32020] NOT registered Oct 13 12:31:34 kamailio[32015] NOT registered Oct 13 12:31:34 kamailio[32022] NOT registered Oct 13 12:31:36 kamailio[32016] NOT registered Oct 13 12:31:36 kamailio[32020] NOT registered Oct 13 12:31:36 kamailio[32015] NOT registered Oct 13 12:31:36 kamailio[32022] NOT registered Oct 13 12:31:36 kamailio[32025] NOT registered Oct 13 12:31:36 kamailio[32018] NOT registered Oct 13 12:31:36 kamailio[32023] NOT registered Oct 13 12:31:36 kamailio[32028] NOT registered ```