Asterisk running on VMware

It works but there are applications that depend on an accurate clock that need some special attention, for example conference bridging. A good test is to install asterisk + zaptel and compose a test dialplan for a conference bridge. Connect to the bridge with two phones and listen to the audio.

Several years ago we ran it in a VM on a basic Pentium 4 host - and it was no good. Voice was choppy and cut up. We installed it natively on the P4 (I think it was a 1.6) and it was all good.

Since then we haven't installed it on any VMs, but I've heard from others that just as long as you assign it enough resources it should be fine.