As voice over IP becomes a routine part of any corporate enterprise, the goals also are starting to change. The big topics include telepresence, unified communications, and federated presence. Unified communications seems to be the big buzzword today, but we've been talking about it for years.

The first use of the term was really around the concept of unified messaging, the merging of text and voice into a seamless user experience where e-mails could be heard and voice mails could be read. But now there's so much more to it.

One company we talked to at VoiceCon, and a company that's been through all of the evolutions, is AVST, a so-called unified communications player. But after being in business for 25 years, Applied Voice and Speech Technologies seems to have lined up a few choice customers, so it should be in a position to help define the directional shift here -- a shift, by the way, that seems to be increasingly about an evolution to a unified communications infrastructure rather than a complete overhaul of the network.

Watch here to see what AVST has to say.