Microsoft Exchange Server 2007 Service Pack 1 introduces many new features for each server role. Lets

• New deployment options: You can now install Exchange 2007 SP1 on a server that is running Windows Server 2008
  
• Client Access Server Role Improvements: We’ve added an UI to manage POP3 / IMAP4, OWA improvements, Active sync improvements with the addition of for example remote wipe information and much more
  
• Transport: Enhancements to message processing and routing functionality on the Hub Transport role.
  
• Mailbox Server Role Improvements: Public folder management in the Exchange Management console, mailbox management improvements, etc...
  
• High Availability: In SP1 we will introduce the Standby Continuous Replication in addition to LCR and CCR, further more we support the WS2008 Failover clustering and we improved the Exchange management console.
  
• Unified Messaging Server Role: Unified Messaging has been improved and has added new features in Exchange 2007 SP1. To use some of these features, you must correctly deploy Microsoft Office Communications Server 2007 in your environment.
  

As you can see we have made a lot of improvements onto Exchange Server 2007 with this Service Pack and especially for the Unified Communication Role.

Exchange Server 2007 Unified Messaging combines voice messaging, fax, and e-mail into one Inbox, which can be accessed from the telephone and the computer. Unified Messaging integrates Exchange Server 2007 with the telephony network in your organization and brings the features found in Unified Messaging to the core of the Exchange Server product line.

• For more information about Unified Messaging, see Unified Messaging.
• For more information about how to plan for Unified Messaging, see Planning for Unified Messaging Servers.
• For more information about how to deploy Unified Messaging, see Deploying Server Roles.
• For more information about how to manage Unified Messaging, see Managing Unified Messaging

As you might have noticed already we have officially launched the Unified Communication Suite and here in Belgium we will have the local launch organized on Nov 29th. If you want to know more about the Exchange 2007 Service Pack 1 improvements I invite you to join us during the event where Ilse Van Criekinge (MVP Exchange Server) will talk about those improvements.