Microsoft Office Communications Server 2007, together with Microsoft Office Communicator 2007, is poised to break down communications barriers and lay the foundation for a future-ready, software-powered VoIP solution that delivers streamlined communications to your end users while integrating painlessly with your existing messaging and telephony infrastructure.

You can download the trial now. The download includes Office Communications Server 2007 and Office Communicator 2007.

Exchange 2010 enables you to achieve new levels of reliability and performance by delivering features that simplify your administration, help protect your communications, and delight your users by meeting their demands for greater business mobility. You can download the Exchange 2010 beta today.

With the 2007 release of the Microsoft Office Live Meeting service, you can host real-time meetings or training events online. You can make presentations, share files, even share your desktop. Your attendees can sketch on a virtual whiteboard, and when your meeting is done, the Live Meeting service archives a complete recording in high fidelity.

Get the free trial version of Microsoft Office Communications Server 2007 Speech Server, which includes a full version of Speech Server as well as all Speech Server tools that integrate with Visual Studio 2005 to build speech enabled self-service applications.