I just sat in on a training session about Diva Server SIP Control. In case you haven't heard of this yet, this is the product that TMC labs gave us an award for a couple of months back. Simply put, it allows SIP applications to control our hardware telephony products, or put another way it is a SIP to PSTN gateway, or a gateway that allows legacy telephony using SIP as the controlling API.

My colleague John (sometimes known as Vic Small) has been using this in anger with customers recently, so he showed us a nice demo of Exchange 2007 taking calls via an Eicon analog card. Exchange 2007 has some nice features using some of the technology from Microsoft's Speech Server: you can navigate through your email inbox via phone using spoken commands, and Exchange can read the emails out for you. The text-to-speech (TTS), which if I remember right Microsoft got from Nuance/Scansoft, sounds excellent, actually difficult to tell it from natural speech.

If unified messaging and MS Exchange is something that interests you, you might like to know that there is a Microsoft team blog, You Had Me At EHLO, that contains lots of useful stuff.