Policy
Replace Label - Mobile
This policy setting allows you to change or remove the 5th label on the Contact Tab, which is on the Contact Card. The default values for the Contact Tab labels are Email (email address), Work (work phone), Work2 (work phone 2), WorkFax (work fax), Mobile (mobile phone), Home (home phone), Home2 (home phone 2), Other (other phone), IM (IM address), Profile (profile), Office (office location), Company (company), WorkAdd (work address), HomeAdd (home address), OtherAdd (other address), Birthday (birthday) . If you enable this policy setting, you can change or remove the labels on their Contact Tab by entering a new text string in the text box below. If you disable or do not configure this policy setting, the default label is displayed.
fe97c781cb4f L_TurnOnContactTabLabelReplaceMobile Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\common\contactcard\turnoncontacttablabelreplace5Policy notes
This policy setting allows you to change or remove the 5th label on the Contact Tab, which is on the Contact Card. The default values for the Contact Tab labels are Email (email address), Work (work phone), Work2 (work phone 2), WorkFax (work fax), Mobile (mobile phone), Home (home phone), Home2 (home phone 2), Other (other phone), IM (IM address), Profile (profile), Office (office location), Company (company), WorkAdd (work address), HomeAdd (home address), OtherAdd (other address), Birthday (birthday) . If you enable this policy setting, you can change or remove the labels on their Contact Tab by entering a new text string in the text box below. If you disable or do not configure this policy setting, the default label is displayed.