The question came up at lunch: 

If you have a building full of the UF-recommended brand of VOIP phones
on the same LAN, can they talk to each other without involving any
additional central points of failure?  I'm not asking for conference
calls, voicemail, recordings with beeps, queues, forwarding, or
whatever.  Just using the last quad of the IP as an extension number.

And if not, is there any alternative type of phone that can do this,
and can also use the UF POTS gateway?  Or Skype?

							Brian