I'm relatively new to the iPhone so perhaps this has been covered in depth and I just dont know it. This happens a lot to me. I'll be on a call and either a text or an email will come in and the notification ringtone will play at full volume making it so I have to tell the person I'm speaking with to hold on for a few seconds until the ringtone stops. Is there anyway to make it a beep for notifications when I'm on a call? TIA.