We would like to change "IP Phone" to "Extension" in ADUC. How?


We are in the process of updating our users' information in Active Directory and we'd like to change the "IP Phone" attribute to be called "Extension". How can we change this label in ADUC?
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Hi Jay, unfortunately this isn't as easy as it sounds! The labels used in the ADUC GUI aren't derived from any corresponding attribute in Active Directory but are instead programmatically specified within the DLLs distributed as part of the WS2000/2003 Admin Pack or WS2008 RSAT.

Modifying the GUI to "rename" labels thus requires some fairly extensive developer knowledge. See http://msdn.microsoft.com/en-us/library/ms676902.aspx and http://msdn.microsoft.com/en-us/library/aa814681(v=VS.85).aspx. To make matters worse, even if the ADUC was modified to show "Extension" for the ipPhone attribute as desired, the newly customized DLLs would have to be packaged into an installer and distributed to all support staff before the changes were visible. Sounds like a TON of work, huh?

Your choices are basically (easiest to most difficult):
1) Use the ipPhone attribute as-is, with the unwritten understanding among support staff that the "IP Phone" field in ADUC is really "Extension."

2) If your organization uses Exchange, consider using custom/extension attributes instead (e.g. extensionAttribute1). Up to 15 of these are available; they can easily be customized/displayed within the Global Address List, and all are GUI-editable using the Exchange snap-ins (Exchange 2003) or Exchange Management Console (Exchange 2007). See http://support.microsoft.com/kb/821747/en-us

3) Employ a developer within your organization to extend the  AD Users and Computers snap-in as described.

4) Extending the AD schema is another possibility, but you would end up in the same scenario you are already in, with having to also extend the ADUC interface to match. Start with http://msdn.microsoft.com/zh-cn/library/ms676900(en-us).aspx, or http://www.petri.co.il/add_additional_attributes_to_user_objects.htm. Unless there's some requirement to have this attribute modifiable within the GUI, advanced support staff can get by with the ADSIEdit snap-in or with a quick VBScript. Otherwise, this option is no problem for a back-office/administrative use only scenario. Really depends on what your specific needs are.

Hope this helps! Sorry that there's no easy answer for this.  :(

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