Unified Messaging is new to the Microsoft Exchange product family. Unified Messaging enables Exchange 2007 recipients to store e-mail, voice mail, and fax messages in one Inbox. Several client-side features are available to recipients who are enabled for Unified Messaging. For more information about the new Unified Messaging client features, see Client Features in Unified Messaging.

Note:
When you are using Microsoft Exchange ActiveSync on a mobile device, you can open a voice message in your mailbox and listen to the attached .wma file that contains the voice message. The advanced Unified Messaging features found in the premium version of Outlook Web Access, such as the voice mail configuration options, are unavailable in Outlook Web Access Light.

Caution:
When you are using Outlook Web Access Light and Pocket Internet Explorer on a mobile device, you may be able to listen to a voice message by using the .wma attachment that is described in Client Features in Unified Messaging. However, this configuration is not supported.

Outlook Web Access in Exchange 2007 has been redesigned to enhance the end-user experience and productivity. Outlook Web Access includes many new features and improvements that are not found in earlier versions of Microsoft Exchange. Features such as smart meeting booking, Windows SharePoint Services and Windows file shares integration, and the ability to manage mobile devices are now available. Outlook Web Access also includes improvements in search, reminders, the Outlook Web Access address book, and other messaging options.

For more information about the new client features found in Outlook Web Access, see Client Features in Outlook Web Access.

Exchange 2007 offers a significantly improved Outlook user experience on mobile devices. It also includes improved security and better mobile device management. No additional software or outsourcing fees are necessary to access data from a mobile device by using Exchange ActiveSync. For more information about the new client features found in Exchange ActiveSync, see Client Features in Exchange ActiveSync.

The improved calendaring feature in Exchange 2007 helps resolve reliability issues, enhances the scheduling process, and encourages more sharing of calendar information. Overall, these improvements make Microsoft Exchange and Outlook calendaring a more reliable and efficient tool for time management.

You can configure the clients on your network that are using earlier versions of Outlook and Outlook 2007 to use Cached Exchange Mode with Exchange 2007. However, Exchange 2007 provides a new notification mechanism for Outlook 2007 clients that enables the clients that are running in Cached Exchange Mode to start downloading new messages more quickly than with earlier versions of Microsoft Exchange.

To comply with legal, regulatory, or business process requirements, many organizations must process, filter, modify, and journal (forward) e-mail messages that are transferred to and from their organization and the Internet and between people in the organization. Administrators can use the messaging records management features in Exchange 2007 to help users and organizations keep the messages they need for business or legal reasons and to discard messages that they do not have to keep. This is done by using managed folders. Managed folders in the user's mailbox to which retention policies have been applied. The administrator or the user puts these managed folders in the user’s mailbox, and then the user sorts messages into the managed folders according to organization policy. Messages included in these managed folders are periodically processed according to the retention policies. When a message reaches a retention limit, it can be journaled, deleted, moved to another folder, or marked as past its retention date.

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