Discrete speaker volume

It would be great if there is a way designed to decrease the speakers volume as when visitors come to my door they say when I am speaking to them it’s very loud and must annoy the neighbours.

I have just fitted the Gen.2 video doorbell and have exactly the same issue, the device speaker is way too loud, the whole street can hear our conversations. it must be very annoying for them and it is more than embarrassing for us. A volume control for the device speaker would be useful.