The ExchUCUtil tool (ExchUCUtil.ps1) is a script that has two functions:

You can run the tool when you initially configure Exchange Unified Messaging for use with Office Communications Server, and again after the Exchange Unified Messaging SIP dial plans are created for Office Communications Server.

You must run the tool again in the following situations:

ExchUCUtil.ps1 is installed with the Exchange Server 2007 with Service Pack 1 (SP1). It is located in the %ExchangeInstallDir%\Scripts\ folder.

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