sound notification on iPhone and iPad with same Apple ID

Anyone can help?

iPhone and iPad with same Apple ID and same WIFI network, when i get txt message or imessage even getting Facetime call , I've receive sound notification only on my iPod instead both devices! Look like iPad its set as priority devices?

All notification settings are set exactly same on both devices! also it doesn't matter if one of two devices got locked or unlocked screen! This is about getting a notification sound because message arriving into two devices but only iPad ringing instead iphone