Enable microphone and sound by default

Hi there - just got a new Ring Pro doorbell installed but I have noticed that when I tap on the notification on my phone to say that someone is at my front door (i.e. they've actually pushed the doorbell) I get the live view feed but the sound and microphone are both muted by default. To make matters worse it seems like the microphone toggle button only shows when the phone is in portrait mode, whereas when the phone is in landscape mode it only shows the toggle sound button. All this means that it takes a bit of fumbling around before I can hear/speak to the person at the door (on top of the delay in opening the app and loading the video feed), all of which wastes valuable time when the person ringing is a courier (and they rarely hang around for more than a few seconds before walking off and posting a "sorry we missed you" card). Is there any way to set the setting so that sound and microphone default to ON when I tap the someone at the door notification so that I can hear/speak to the person ringing the bell immediately without having to unmute each time? I've tried looking in the settings but couldn't see it...