Teams multiple Rainbow Users with same name

We have a customer with 3 users with the same name.

The mobile app searches and displays the 3 users with their extn number.

The Teams search just displays the 3 user names without identifying their extn number, the customer is therefore unable to id any of the 3 extn numbers.

They have asked if this can display the extn alongside each name or link to LDAP to differentiate further.