Hello, you can specify on command line during start: henning@kam01:~$ /usr/sbin/kamailio -h | grep mem -m nr Size of shared memory allocated in Megabytes -M nr Size of private memory allocated, in Megabytes Cheers, Henning -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://gilawa.com<https://gilawa.com/> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Hamid Hashmi Sent: Friday, October 16, 2020 5:43 PM To: sr-users(a)lists.kamailio.org Subject: [SR-Users] How to increase private & shared memory in kamailio Container? Dear Users How can I increase private memory in the Kamailio container? the service was started with the following command docker run -d --restart unless-stopped --network host -v /root/volumes/scscf/:/etc/kamailio --name scscf -e IP=10.161.224.90 -e INT_IP=10.161.224.90 10.161.224.196:5000/kamailio-ngvoice PS: I don't have a docker file to build the image again. Regards Hamid R. Hashmi