It could be possible - they all run the same software, it's just the ProductID and ProductKey that are different on each of the codecs.
You'd need to request new Product Keys from Cisco for each of the C90s to change them from a 1P005 (Center) or 1P006 (Left of Right) T3 codec to a normal C90.
You'd also need to purchase any of the other licences you may require for the two L&R codecs (ie Multsite, Natural Presenter, etc) as these are only present on the Center codec in a T3.
In effect, you'd be doing the opposite of this document.
Wayne
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Wayne
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