Configuring Free Busy information between Exchange organizations

2 Jul

Microsoft offers some tools or build-in-features to make free/busy available.
The below described scenarios show some useful links helping you to configure free/busy access in different scenarios for trusted and untrusted relations.


Scenario: Exchange 2003 and Exchange 2003 – Trusted forests
Tool: Interorg Replication Tool
see Ismail Mohammed’s blog “Inter-organization setup for Exchange 2003 between the forest
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Scenario: Exchange 2003 and Exchange 2003 – Untrusted forests
Tool: 3rd party tools
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Scenario: Exchange 2003 and Exchange 2007 – Trusted forests
Tool: Interorg Replication Tool and Availabilty Service
comment: public folder store required on E2K7
see Ismail Mohammed’s blog “Inter-org Replication from Exchange 2003 forest to Exchange 2007 sp1 forest
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Scenario: Exchange 2003 and Exchange 2007 – Untrusted forests
Tool: 3rd party tools
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Scenario: Exchange 2007 and Exchange 2007 – Trusted forests
Tool: Availablity Service
See Technet: How to Configure the Availability Service for Cross-Forest Topologies
or The Three UC AmigosSupporting US Education: “We trust each other don’t we?” and http://blogs.technet.com/ucedsg/archive/2008/09/10/can-i-share-free-busy-information-between-two-exchange-2007-organizations.aspx
or
MSExchange Blog “Configuring Interorg Free/Busy in a single server Exchange Server 2007 organization”
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Scenario: Exchange 2007 and Exchange 2007 – Untrusted forests
Tool: Availablity Service
See Technet How to Configure the Availability Service for Cross-Forest Topologies

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