Whatsapp permission to record when calling I can understand the request for the App to access to the Mic for sending the voice in a phone call. But why is it necessary to say "record"? Recording is a separate function and the caller's choice. It is scary to think that Whatsapp is recording and storing your calls somewhere.
I think record comes with Mic permissions, the calls are not recorded, at least not by Whatsapp. The record permission is for sending voice messages. Also Whatsapp voice calls like its text message service is end to end encrypted. That means that only your phone and the recipient's phone can decrypt the information being passed.