Teams Mobile (iOS) Not Showing Outlook Contacts in Calls > Make a Call > People - Bug?

We're seeing inconsistent behavior between the Teams Android and iOS apps and are trying to determine whether this is a known issue or bug.

Expected behavior: Outlook contacts (and contacts created directly in Teams) should appear under Calls > Make a Call > People so users can search and place calls by contact name.

Observed behavior:

Android Teams

• Outlook contacts appear under an "Other Contacts" category.
• Teams-created contacts also appear under "Other Contacts".
• Contacts can be searched and called by name.

iOS Teams

• The same contacts do not appear under Calls > Make a Call > People.
• Only Directory Contacts are returned.
• While searching, the "Other Contacts" category briefly appears for a moment, then disappears when the search completes.
• Outlook contacts and Teams-created contacts are not returned in the results.

Additional testing

• Teams is fully up to date on both Android and iOS.
• Same Microsoft 365 account used on both devices.
• Teams does not have permission to device contacts on either device.
• The contacts are not stored in the phone's native contacts app.
• Contacts are visible in Teams Desktop and Teams Web.
• Contacts can be found through general Teams search and caller ID resolution works.
• App cache cleared, sign out/in performed, and devices restarted.

Has anyone else seen this behavior on iOS? Is there a known limitation with the iOS Teams dialer search, or does this appear to be a bug where the "Other Contacts" results are not being displayed?