Hope someone can help me. I recently received an I pad 2 and have not been able to receive audio alerts for face time calls and texts. I have an I phone 4 and receive audio alerts for the same, but if I want to answer on my I pad, have to carry phone along so I know when a text or face time call is coming in. Mute button is not engaged and a sound has been selected for texts and for face time. Volume is at 100%. Do I need to take it back?