To upgrade from Kamailio 5.2 to 5.4

1. Upgrade Kamailio:
   • enswitch install -u kamailio # If running a single machine
   • enswitch install -u kamailio-ha # If running Kamailio with heartbeat
   • enswitch install -u kamailio-cp # If running Kamailio with corosync and pacemaker
2. Update configuration:
   • vi /etc/kamailio/kamailio.cfg # and change kamailio_52.cfg to kamailio_54.cfg
3. Restart Kamailio:
   • enswitch restart
4. Check the Kamailio log for errors and test calls.