Ron Joffe wrote:

Just a quick note about POE (power over ethernet). Basically what you see is not what you get :( . I have a Cisco 3524 switch with POE, and I also have an IP phone (Snom 100) which is also POE, but the two don't talk.

I've found mention that older Cisco PoE switches reversed the DC voltage lines compared to what most other companies were doing as there wasn't a standard until recently as I understand it. I'm not sure if this is actually what is causing your problem, but it may be worth looking into.
The differences can be found mentioned here:
http://www.nycwireless.net/poe/


And here is a brief talking about Cisco supporting the standard from a couple of days ago:
http://www.computerworld.com/networkingtopics/networking/story/0,10801,90260,00.html


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