Wish I had more experience with Cisco products. We use powered HP Procurves with Cisco routers in our VOIP installs, but we're not installing Cisco VOIP products (3com NBX).
The thing with HP is that they are providing power over the data pairs, not the spare pairs. No one else seems to do it this way, although it is allowed in the POE standard. The first generation of Cisco VOIP phones was not compatible with the Procurves, but I'm not sure about the newer products.
Not much help, I know, but keep us posted on the decision. I, for one, would like to move toward a unified solution, as opposed to the 3 distinct vendors we use now.
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-Steve
