Why can I not see who is calling my phone?

[AC Question]

My phone is an hydro wave when a call comes in I can hear it but in order to answer it I have go to the phone icon and touch then touch call in progress for it to show who is calling.

 

[B. Diddy]

Welcome to Android Central! Is this when you get a call while you already have the screen on while doing something else, or is this when the screen is off or locked?