Outlook - Multiple Cell Phone Fields

Are you talking about contact list in Outlook ?
If yes then you can have up to 4 Mobile numbers in User card


You can change field type for yourself

With respect, Tom's suggestion does not show four separate fields. Those are four instances of the exact same field.

@Patrick
With respect, he was looking for to put 2 cell phone numbers and was complain that only one field show Cell Phone other different numbers.
My suggestion was change field description so in Contact properties will show more than one Cell Phone number field.

Did I understand question wrong ?>

Tom, I think you did. Outlook only provides one Mobile attribute for a contact. Go ahead and try to add a Mobile number, and see what happens :)

This is the closest Outlook gets to what the Asker wants to do