Microsoft Exchange Hosted Services provides enterprise-grade security service that helps protect against malicious attacks, satisfies retention requirements for compliance, encrypts data to preserve confidentiality, and preserves access to e-mail during and after emergencies.

Microsoft Exchange Server 2007 manages asynchronous communications and delivers unified messaging unified messaging unified messaging (e-mail, voice mail, and faxes) in one inbox. The 2007 release includes a new voice attendant so that users can dial in to hear their e-mails, check their calendars, and access their contacts.

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.

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.