VOIPBOX uses industrial CompactFlash cards, guaranteed by the manufacturer not to fail in 100 years of constant use, for the operating system (OS) and settings.
The operating system has a small footprint (currently less than 128MB) which, once booted can run purely from RAM, making it extremely fast. It’s made even faster by performing a lot less read/write cycles – only writing to flash when changes are made.
You also have better protection in the case of an unexpected power outage. CompactFlash cards massively reduce the risk of configuration and application data being corrupted.