Phone Extension not visible in Directory Overview

Summary

Although primary phone (=work phone) is visible, the extension is not shown

Content

Hi everybody,

 

Is there a way to show the extension of a work phone number already in the Directory overview (= the first view you get after entering data into the "What are you looking for" box)

The basic number is visible, but the actual extension is only shown when I click on the actual employee and get the full detail page (the one with the picture on top).

Is this behaviour by design or a bug (we are using 18C atm)??

we have entered the phone extensions in the corresponding fields of the database, so the datasource is valid.