Sounds like handsets getting Power-over-Ethernet with its own separate (tiny) battery.

----
Jack Kramer
Manager of Information Technology
Communications and Brand Strategy
Michigan State University
w: 517-884-1231 / c: 248-635-4955

From: Troy Murray <[log in to unmask]>
Reply-To: Troy Murray <[log in to unmask]>
Date: Friday, August 17, 2012 11:41 AM
To: "[log in to unmask]" <[log in to unmask]>
Subject: Re: [MSUNAG] Lansing Information Systems Security Association Meeting Notes

They said VoIP and that they had an hour of use, dunno, maybe Nick can enlighten us. There was another MSU person there from IT Services that might have more of the story.



On Aug 17, 2012, at 11:39 AM, David McFarlane <[log in to unmask]> wrote:

At 8/17/2012 11:26 AM Friday, Troy D Murray wrote:
   * The phones were VoIP, so those would function for 1 hour on some backup system before they'd go off-line (I didn't understand this and they didn't elaborate).
Just a guess, doesn't VOIP require internet and a working power supply?  By contrast, POTS (analog) supplies power from its own separate grid.
-- dkm