I'm on a Verizon Note 3 running stock 4.4.2. It's rooted. I looked and looked in the settings to see if I could find anything such as a delay on initial incoming phone call. Let's say you call me. My phone ringtone kicks on but it's quiet for about 2 seconds, then increases to match the volume level I set. I don't know if it's happening because it's trying to ring and vibrate at the same time or what. Anyways I think the setting might be too ambiguous... if there is one.