How can I differentiate between audio call vs video call when called?

Hello hive mind, 

I was curious how someone can differentiate between an audio or video call when I receive a call? I understand the choice is up to me but that sometimes catches me off guard. Is there an icon or some indicator when a call comes in on Teams that can inform me what type of call it is? Does the indicator work the same across all platforms from the mobile app and the desktop client? 

Thank you for any information!