I am not an analyst so don't expect this to be about Nortel's issues with solvency.  For that you can go to the Wall Street Journal.

In that article one statement hit me.  "Nortel has been reeling from the sudden drop in demand for its voice-only wireless equipment, cutting costs and trying to sell assets to survive the recession."  

This is the issue the carriers are facing and making a choice.  They are opting to support data, because of the demand for the wireless Internet and that opportunity is going to be steam rolling in all the carriers.

Voice only has been a hard sell for a while, and Nortel to its credit has been developing some good products that tie into the data world.

When I visit carrier friends, I often find that Nortel is a key component of their vendor strategy, so it will be interesting to see how their woes play out.