Currently, while on a call other incoming calls will ring, can be heard by all parties, and must be rejected. An option to turn on DND whenever a call is taking place would eliminate this distraction.
Update 1/6/23: This feature has been pushed back, expected in app by end of February 2023.
Hi everyone, a toggle in phone settings is coming December 2022! You will be able to toggle incoming call noise to be on or off.