> For the complete documentation index, see [llms.txt](https://support.portsip.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.portsip.com/portsip-communications-solution/high-availability-v22.x.md).

# High Availability (v22.x)

This guide is for setting up the PortSIP PBX v22.x high availability on Ubuntu 24.04.