Zello Enterprise Server software is efficient and runs well even on commodity server hardware. To support 1000 simultaneous users you'll need:
- Quad-core CPU @2GHz or better
- 13 Gb RAM
- 10 Mbit link
Zello Enterprise Server is deployed as pre-configured and ready to run VMWare image. To load and execute the appliance you need to use a VM engine that can run a virtual appliance with CentOS 6.6.