[Unit] Description=Kamailio (OpenSER) - the Open Source SIP Server Configured for Kazoo After=syslog.target network-online.target [Service] User=kamailio Group=daemon PermissionsStartOnly=true LimitNOFILE=65536 LimitCORE=infinity LimitMEMLOCK=infinity ExecStartPre=/usr/sbin/kazoo-kamailio prepare ExecStart=/usr/sbin/kazoo-kamailio start ExecStop=/usr/sbin/kazoo-kamailio stop Restart=on-abort [Install] WantedBy=multi-user.target