Simulring And Failover Question

I see in your News Forum post of 10-19-2009, 01:25 PM that you have come up with a very clever solution to simulring with a cell phone that's off or out of range (Auto Answer). My current provider, Vonage, does not have a solution for this.

I would like to know how failover affects simulring when auto answer is on. If, for example, there is a power outage and failover is set to voicemail will the simulring settings be ignored and incoming calls be sent directly to voicemail? I would prefer if simulring would take precedence and see if it could reach my cell before it went to voicemail.

Nobody have time to test this? Should be pretty simple:
Setup failover to voice mail.
Setup simulring to your cell.
Unplug the ATA.
Have a friend call and see where it goes.