Article ID: 977920 - View products that this article applies to.
In Microsoft Exchange Server 2007 or in Microsoft Exchange Server 2010, you try to create a Unified Messaging (UM) Auto Attendant in the Exchange Management Console. Then, you receive the following error message:
After you receive this error, you cannot create the Auto Attendant.
Error: The pilotidentifier 'string value' is not a valid extension.
This issue occurs when the UM Auto Attendant uses Telephone Extension as the URI Type for the UM Dial Plan, and the pilotidentifier parameter contains nonnumeric string characters. The URI Type for Telephone Extension can only accept numeric strings as pilotidentifier parameter values.
You must use numeric characters for the pilotidentifier parameter values when you create an UM Auto Attendant that uses Telephone Extension as the URI Type for the UM Dial Plan.
Article ID: 977920 - Last Review: March 3, 2010 - Revision: 1.0
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