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Tested and supported by Microsoft, Hosted Messaging and Collaboration version 4.5 integrates hosted customer services with infrastructure components running on a platform based on either the Windows Server 2008 or Windows Server 2003 operating system. Hosted services provide revenue-generating, managed applications that service providers can offer to business customers and others. Infrastructure components play a key role in streamlining the management, administration, and monitoring of Hosted Messaging and Collaboration environments. Benefit - Increase reliability of service - Improve availability and reliability of data - Scale your service from a single offering - Easily migrate to updated products - Provide a compelling new mobile experience

Microsoft Solution for Hosted Messaging and Collaboration 4.5 Hosted Services Hosted services serve as the solution¡¯s revenue-generating components. The following table describes the hosted services available with Hosted Messaging and Collaboration and the associated Microsoft technologies and functions.

Component	Product	Functions
Hosted Exchange	Microsoft Exchange Server 2007 Service Pack 1 (SP1)	Unified Messaging: With Outlook Voice Access, Unified Messaging?enabled users can access their Exchange Server 2007 SP1- based mailboxes using analog, digital, or cellular telephones. Clustering: Exchange Server 2007 SP-1 includes functionality that provides high availability for mailbox servers. Data replication capabilities help drive increased availability at a lower cost
Windows SharePoint Services Hosting	Microsoft Windows SharePoint Services 3.0	Private Web site hosting for customers for document and information sharing. With customizable application templates enable service providers to offer applications as value-added services to their customers.
Synchronous Communications	Microsoft Office Communications Server 2007	Includes instant messaging (IM) and audio and video conferencing. Supports presence, which helps users see at a glance if someone is available and contact that person with a click using IM, a voice call, or a video conference.

Infrastructure Components Service providers can streamline the management, administration, and monitoring of their hosting environments through the Hosted Messaging and Collaboration 4.5 infrastructure components. Deploying these components in a data center can significantly lower operational costs and increase the scalability of a hosting platform. The infrastructure components provide directory services, data storage, provisioning, software update management, and other technologies that help manage and automate data center operations and administration. The following table summarizes the hosting infrastructure components and the associated Microsoft technologies and functions.

Component	Product	Functions
Centralized management	Active Directory	Centrally manages users, accounts, servers, group policies, services, and security.
Monitoring and reporting	Microsoft System Center Operations Manager 2007 (MSCOM)	Proactively monitors both internal data center and customer site operations; includes step-by-step guidance on developing management packs for hosted applications.
Service provisioning	Microsoft Provisioning System (MPS)	Automates routine administrative service management tasks such as adding new users and provisioning applications and services.