Everything new is old again – convergence
Or, converged communications, if you prefer.
I mean, c’mon. We’ve had VoIP for a while. (Before that we had H.323. Even before that we had Internet telephony, although it didn’t work all that terribly well.)
Of course, from our perspective in security, convergence is a great thing–for job security. Just think, we can take all the problems we have in networking, and all the problems we have in telephony, and roll them up into one big insecurity.
(Surprise, surprise: bad guys are breaking into home and small office VoIP PBXs and using them to make telemarketing calls.) (Although don’t get me wrong: I’ve nothing against Asterisk per se, and I’m sure it’s a great system–if well managed.)