For Digital Detox App, allow for keypad to used for joining conference calls

I usually start working at 9 AM and work till 6 PM.
For this time, I use Digital Detox app. It does a great job!

I am able to receive calls as well.
But when I get a conference call from a server[for example webex], we need to press ‘1’ on the keypad to join the conference call. For this, I had to invoke the emergency button.

I have to receive at-least 4-5 conference calls a day.