1.Unless otherwise specified, the operations mentioned below are only performed on the master node pbx01
1.Please change the host names of the three nodes to pbx01, pbx02 and pbx03
1.It is recommended to configure 4 cores CPU and 4G memory hardware. If it is lower than 2-cores CPU or 2G memory, ha handoff will be affected by hardware, and call recovery time will increase
unused
/root/portsip-pbx-ha-guide
directory/root/portsip-pbx-ha-guide/vars.yml
to change the PortSIP PBX
docker image version.