Upgrading and Coexisting with Exchange 2010. Ilse Van Criekinge. Content. Introduction Supported coexistence scenarios Upgrade and coexistence Exchange 2003 Upgrade and coexistence Exchange 2007. Introduction. Source: http://support.microsoft.com/lifecycle. Supported Coexistence Scenarios.
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Ilse Van Criekinge
In-Place Upgrade NOT possible!
Exchange 2007 Exchange 2010
ADUC / ESM
Step1. Introduce UM2010 to existing dial plan
Step 2. Route IP GW/PBX calls to UM2010 for dial plan
Step 3. Remove UM2007 after UM-enabled mailboxes have been moved
Step 1. Introduce UM2010 with new dial plan
Step 2. Remove UM2007 after UM-enabled mailboxes have been moved