Hi Jayapal, "Integration" is a vague concept. It's important to have some understanding of where Kamailio fits in in relation to FreeSWITCH, and what sort of functionality is provided by each. Broadly speaking, absent any other clarity, FreeSWITCH is a PBX and voice application server, while Kamailio can be thought of as a "router" or infrastructural "glue" that gets the traffic in and out of FreeSWITCH. A common application is to use Kamailio to scale up FreeSWITCH, e.g. as a load balancer. Kamailio has some other capabilities as well, such as being a centralised registrar used by multiple FreeSWITCH servers to reach end-user devices. Kamailio's logging destinations are basically up to you to manage. Traditionally, this was a matter of setting the `log_facility` core parameter: https://www.kamailio.org/wikidocs/cookbooks/5.7.x/core/#log_facility e.g. `log_facility=LOG_LOCAL0`, and then routing that facility in your syslog daemon configuration to a particular log file, e.g. in /etc/rsyslog.conf: local0.* -/var/log/kamailio.log With the advent of `systemd`, there is a systemd-journald and syslog forwarding dimension to this as well. -- Alex -- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com Tel: +1-706-510-6800