Remote IP displaying on call out

Hello,

When placing a call from the History > Missed Calls, Placed Calls or Received Calls menu, the remote IP is displayed with the phone number being dialled.

For example:

Missed call: 02 9800 1506

Is placed as:

0298001506@202.90.150.50

Would anyone know what setting I can use to display just the number only?

Thanks!