ipPhone attribute in Azure AD

It's included in the list of attributes synchronized by Azure AD Connect. https://learn.microsoft.com/en-us/azure/active-directory/hybrid/reference-connect-sync-attributes-synchronized

I would run through Azure AD Connect and make sure sure that attribute is selected. Confirm that you have set IpPhone as the source attribute for the primary or secondary phone in your Azure AD sync config.

If you go to Microsoft Graph Explorer, you can do a query for a user or set of users. You can specify the IpPhone attribute to confirm if it returns values for IpPhone:

https://graph.microsoft.com/v1.0/users?$select=displayName,IpPhone.  

Hello RobertALewis,

First of all, confirming you that "ipPhone" it is an attribute that it should be sync with ADConnect as specified by Microsoft here: https://learn.microsoft.com/en-us/azure/active-directory/hybrid/reference-connect-sync-attributes-synchronized

Second I would like you to verify the synchronization process has not been filtered during the ADConnect sync confirguration: https://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-install-custom#azure-ad-app-and-attribute-filtering

Last but not least, this troubleshooting guide for attributes not synchronizing: https://learn.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-attribute-not-syncing

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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