If the Fax Number Cannot be Obtained
If the fax number cannot be obtained during authentication, specify the setting as follows:
Windows Server 2008 R2 is used to show the procedure.
From the [Start] menu, point to [All Programs], click [Accessories], and then click [Command Prompt].
Under Windows Server 2012, right-click the Start screen, click [All Apps], and then click [Command Prompt].
Enter "regsvr32 schmmgmt.dll", and then press the [Enter] key.
Click [OK], and then close the command prompt window.
On the [Start] menu, click [Run...].
Under Windows Server 2012, right-click the Start page, click [All Apps], and then click [Run].
Enter "mmc", and then click [OK].
On the [File] menu, click [Add/Remove Snap-in...].
Select [Active Directory Schema], and then click [Add>].
Click [OK].
Click [Active Directory Schema] in the left column, and then open the [Attributes] folder.
Right-click [facsimileTelephoneNumber], and then click [Properties].
Select the "Replicate this attribute to the Global Catalog" check box, and then click [Apply].
Click [OK].
On the [File] menu, click [Save].
Specify a file name and a location in which to store the file, and then click [Save].
Close the console window.