Many have asked us which is the most economical way of having a PBX without sacrificing quality and can handle a good number of calls.
The team at VitalPBX has invested countless hours in development to be able to port the best PBX software possible. VitalPBX 4 being based on Debian 11 (Bullseye) allows us to install VitalPBX on multiple architectures, ARM being one among them. Throughout our example, we are using a Raspberry Pi 4 with 4GB of RAM.
We have a complete step-by-step guide which you can find in the following link:
https://vitalpbx.com/blog/install-vitalpbx-4-on-a-raspberry-pi-quick-guide/