Sorry for the delayed response, I finally found where gmail hid this response... :(
So the application is FusionPBX, a FreeSwitch-based VoIP system, running on a very unloaded (1% cpu load, 2-4 VMs running) system. I've been experiencing intermittent call breakup, for which external support immediately blamed on the virtualization solution claiming that "You can't virtualize VoIP systems without causing voice breakup and other call quality issues". Previously, I had attempted to run FreePBX (asterisk-based) on a Hyper-V system, and I did find that to be the case; moving over to very weak, but dedicated hardware, fixed the problem immediately.
Since I sent this message, I did extensive testing with my system, and it appears that the breakup is in fact network related. I've been able to do phone to phone calls on the local network for extended durations without issue, and even have phone to phone calls on external networks without issue. However, calls going to my VoIP provider do break up, so it appears to be the network route to my provider.
So, oVirt does not appear to be to blame (which I didn't think so, but was hoping for some "expert information" to support this...It appears that I got that and more with my tests).
Thank you again for your work on such a great product!
--Jim