User was on S4B with a Certified 3PIP Phone
User Used the Favorites Option to Add Contacts/Speed Dials to the Device and/or Expansion Module of the Certified 3PIP Phone
User Migrates to Teams Only Mode
Contacts are Imported into Teams Client
You Can no longer edit the contacts that are favorites/pinned on the 3PIP device.
I understand that's its not a Teams Device but you can't expect us to upgrade all devices to new desk phones which were just deployed in the last 12 months.

Please make a way to have pinned contacts manageable on the existing 3PIP Phones.