The reality check is that as we move to an IP world, the likelihood that you are going to have compatibility issues will increase dramatically. Whatever age you are, think about how your video formats have changed. One thing I can promise you is that you have probably gone through three generations of some technology.

Reading industry trades, I came an interesting observation. Mobile networks require swap outs of technology far more frequently than the old traditional network. That point came across to me again as a friend was telling me about trying to sell to an enterprise networks that would not migrate from his frame-relay network.