That's the point.
I'm constructing a monitoring workstation.server.
Xeon. - not dual yet, but will probably require it.
PCI-X and PCI-Express slots.
9 Gbit ports - 7 copper, 2 fiber.
Room for a bunch more.
Will be running ntop and tcpdump in logging/capture mode.
Will be tracking almost all our corporate network traffic, with the Ciscos mirroring the key routing ports.
So one of the things it needs to do is alert on certain conditions.
One of the conditions is a total network outage.
And yes, I though about call-id dialing, but this has to also go to help desk staff, which really needs more than a phantom phone call.