From Forum Nokia Wiki

Hi, Wanted to know if there is an app to display the contact labels. Maybe some one developing contact apps can consider including the below desired features. Nokia has nice feature of adding a lot of numbers within one contact. It allows you to label each number. However, these labels are not displayed as Caller Id. I remember Full screen caller used to have that feature in S60V1/2. I dont see that feature in S60v3 for N82 etc. Even the search option for label is not seen. Can anyone help in this regard please.