Why does Exchange UM say unrecognized caller in OVA when name is resolved in the voicemail?

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A question from a school in Utah:

 

The scenario was their Outlook Voice Access (OVA) was not correctly announcing the caller when the user was in a different dial plan defined in UM. This problem occurs if the voice mail message is from a user who is authenticated against a different dial plan. OVA announces "Unrecognized caller" even though the caller address is resolved correctly in Microsoft Office Outlook and in Microsoft Office Outlook Web Access. 

 

 

I found the fix: download and install Update Rollup 3 for Exchange 2007 Service Pack 1.  You can grab rollup3 here:

949870 Description of Update Rollup 3 for Exchange Server 2007 Service Pack 1