IP Phone attribute missing inside Entra ID

Question

IP Phone attribute missing inside Entra ID

Federico Coppola 125

Hello folks,
I quickly describe my scenario:
I manage a on-premise domain controller (Win Server 2022) and a Microsoft 365 tenant.
These two environment are synchronized using "Microsoft Entra Connect Sync" (password hash).

All users are properly in sync with the M365 account, however I am not able to see IP Phone attribute in Entra ID.

I need Entra ID attribute to manage integration between a cloud phone system and Azure AD.

Is IP Phone attribute hidden in Azure AD?

Thanks a lot

Givary-MSFT 35,681 Reputation points Microsoft Employee Moderator

2024-11-06T04:14:23.8466667+00:00

@Federico Coppola Just checking in to see if below information was helpful. If you have any further updates on this issue, please feel free to post back.

Please remember to "Accept Answer" if answer helped, so that others in the community facing similar issues can easily find the solution.

2 answers

Your answer

Givary-MSFT 35,681 Reputation points Microsoft Employee Moderator

2024-11-06T04:14:23.8466667+00:00

@Federico Coppola Just checking in to see if below information was helpful. If you have any further updates on this issue, please feel free to post back.

Please remember to "Accept Answer" if answer helped, so that others in the community facing similar issues can easily find the solution.

Answer 1

Vasil Michev 123.5K MVP Volunteer Moderator

Entra/Azure AD does not expose workload-specific attributes, such as IpPhone. Similarly, there are other Exchange/SfB attributes that you will not be able to see anywhere in the Entra admin center or via the Graph API. Check the requirements/setup instructions from the vendor to make sure they can correctly map this property.

Answer 2

Issue: ipPhone attribute is synchronised by default from Active Directory but is not visible in the UI or via Graph API in EntraID.

Solution: The ipPhone attribute needs to be mapped to an Extension attribute in either Connect Sync or Cloud Sync depending on your config.

Pre-requisite: You must have added the Directory Extensions for this additional attribute to be available: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/how-to-connect-sync-feature-directory-extensions

Once that is in place, you can map the ipPhone attribute via one of these methods:

Connect Sync: Enable the following Directory Extension: OtherIpPhone (this is different to the ipPhone attribute which is already synched).

Cloud Sync: Add the Attribute Mapping between ipPhone and the extension attribute "extension_xxxxxxxxxxxxxxxxxxxxxx_ipPhone" (where the xxxxxxxx matches the extension ID for the Directory Extension Enterprise App ObjectID) .

After a sync, the attribute is available as an extended attribute via MgGraph: https://learn.microsoft.com/en-us/entra/identity/hybrid/cloud-sync/custom-attribute-mapping?tabs=ps

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IP Phone attribute missing inside Entra ID

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