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Appendix A
UM in Microsoft® Exchange Server 2010
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Overview
• Planning the UM Infrastructure
• Planning the UM Configuration
• Planning UM Integration with Office Communications Server
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Lesson 1: Planning the UM Infrastructure
• UM Architecture and Topology
• Infrastructure Requirements
• Business Requirements
• Planning Considerations
• Planning Considerations for VoIP Gateways
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UM Architecture and Topology
• VoIP protocols- such as SIP and RTP-are between Unified Messaging and IP PBX or IP gateways
• Other protocols are between server roles
Directoryserver
Hub Transport
server
Mailbox server
Client Accessserver
Unified Messaging
server
Outlook
Outlook
OutlookWeb
AccessInternet
Microsoft Exchange
ActiveSync
UM IPGateway
IP PBX PBX
PSTN
Internalphone
Externalphone
Internalphone
Internalphone
Firewall
SMTPMAPI RPCHTTPSVoIP
RPC/HTTPSTDMLDAP
Forest
Site
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Infrastructure Requirements
Server roles
• Mailbox server
• Hub Transport server
• Client Access server
• Unified Messaging server
Other infrastructure requirements
• VoIP phone
• AD DS
• PBX
• Unified Messaging IP gateway
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Business Requirements
• Number of supported users
• Phone and voice mail users
• Storage requirements for users
• Voice mail codec
• Number of simultaneous users
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Planning Considerations
• Telephony network and current voice mail system
• Current data network design
• AD DS environment
• IP/VoIP gateways, telephony equipment, and Unified Messaging servers placement • PBXs are networked,
centralized, or located inmultiple locations
• Place PBXs physically closeto IP gateways
• IP gateway and UnifiedMessaging placement
• Exchange Server roles and Unified Messaging Servers
• WAN termination
• Codec
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Planning Considerations for VoIP Gateways
• Supported IP/VoIP gateways
• Two configurations for IP/VoIP gateway devices:
• IT/PBX: A single hardware device
• Legacy PBX and an IP/VoIP gateway: Two separate hardware devices
• Multiple IP gateways
• Multiple locations
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Lesson 2: Planning the UM Configuration
• Hardware Infrastructure Requirements
• UM Dial Plan Object
• UM Hunt Group Object
• UM Server Object
• UM Mailbox Policy Object
• UM Clients
• Process for Deploying UM
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Hardware Infrastructure Requirements
• Processor
• Minimum: 2 processor cores
• Recommended: 8 processor cores
• Maximum: 12 processor cores
• Memory
• Minimum: 4 GB
• Recommended: 2 GB per processor core
• Storage
• Number of users
• Number of language packs
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UM Dial Plan Object
A dial plan object:
• Is an Active Directory container object that logically represents sets or groupings of PBXs that share common user extension numbers
• Represents the scope of a voice mail system that Unified Messaging is replacing, generally
A dial plan:
• User can reach all others using a fixed length extension number
• Extension is unique
• May consist of feature transparent PBX networks
• Plus the extension number uniquely identifies each Unified Messaging user
A dial plan object:
• Is an Active Directory container object that logically represents sets or groupings of PBXs that share common user extension numbers
• Generally represents the scope of a voice mail system that Unified Messaging is replacing
A dial plan:
• User can reach all others using a fixed length extension number
• Extension is unique
• May consist of feature-transparent PBX networks
• Extension number uniquely identifies each Unified Messaging user
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UM Hunt Group Object
A hunt group:
• Is a group of PBX or IP/PBX resources or extension numbers, that represent a collection of like endpoints
• Is used to distribute calls efficiently into or out of a given business unit
• Is accessed by using a pilot number
Hunt group objects:
• Represent a hunt group configured at the PBX, to direct calls to a VoIP gateway
• Are contained within a Unified Messaging IP gateway object
One or more hunt groups can be associated with a Unified Messaging IP gatewayOne or more hunt groups can be associated with a Unified Messaging IP gateway
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UM Server Object
An administrable object used for controlling Unified Messaging properties on an Exchange Server 2010 server running the Unified Messaging server role
An administrable object used for controlling Unified Messaging properties on an Exchange Server 2010 server running the Unified Messaging server role
• Performs directory lookups in AD DS in these scenarios:
• To locate the Mailbox server that hosts the user mailbox
• To locate user’s prerecorded, spoken names from AD DS
• To locate subscriber extensions and other attributes
A default deployment of a Unified Messaging server can support up to 100 concurrent voice mail connections
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UM Mailbox Policy Object
Unified Messaging mailbox policies are conceptually similar to traditional voice mail Classes of ServiceUnified Messaging mailbox policies are conceptually similar to traditional voice mail Classes of Service
Unified Messaging mailbox policy properties can include:
• Dial plan (required)
• Maximum greeting length
• Number of unsuccessful login attempts before password reset
• Minimum digits required in a PIN
• Number of days until a new PIN is required
• Number of previous passwords disallowed
• Calling restrictions
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UM Clients
Unified Messaging clients include:
• Office Outlook 2007
• Outlook Web Access
• Windows® Mobile andMicrosoft Exchange ActiveSync
• Outlook Voice Access (internal and external phone)
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Process for Deploying UM
1. Create a Dial Plan object
2. Create a Unified Messaging IP gateway object, andassociate it with the Dial Plan object (optional)
3. Create a Hunt Group object, and associate it with a Unified Messaging IP gateway object (optional)
4. Enable users, and associate them with a mailbox policy
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Lesson 3: Planning the UM Integration with Office Communications Server
• Office Communications Server 2007 R2 Features
• Benefits of UM Integration with Office Communications Server 2007
• Planning the UM and Office Communications Server Integration
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Office Communications Server 2007 R2 Features
Office Communications Server 2007 provides:
• Instant messaging
• Presence information
• Web conferencing
• VoIP
Unified Messaging can be integrated with Office Communications Server 2007 to provide access to messaging and voice functionality using both messaging and Office Communications Server clients
Unified Messaging can be integrated with Office Communications Server 2007 to provide access to messaging and voice functionality using both messaging and Office Communications Server clients
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Benefits of UM Integration with Office Communications Server 2007
Integration provides these additional benefits:
• Dial plans enable an Office Communications Server 2007 user to call another without dialing that user
• High-fidelity voice messages
• Access to Outlook Voice Access from Office Communicator 2007 without requiring a PIN
• Office Communicator 2007 clients can associate subjects and priorities to voice messages
• Missed call e-mail notification messages using Message Waiting Indicator
• Messages received within the Office Communications Server 2007 environment cannot be forwarded outside the Office Communications Server 2007 environment to preserve the security and privacy of voice mail
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Planning the UM and Office Communications Server Integration
• Integration planning considerations
• Bandwidth
• Dial plans
• Number of users
• IP gateway placement
• Fault tolerance