prevent notification sound when on WhatsApp call

[Coolsubzerous]

For example, I get a WhatsApp call, say from A and I don't want to hear a whatsapp notification sound that is coming in ,say from B while I'm talking on the whatsapp call with A. I can hear the sound while talking on my WhatsApp call. I know there is a way to turn this off for a normal phone call but i am not sure for a WhatsApp call.