Call back patch?

Hi folks,

I have a couple of friends having a pre-paid SIM card (which comes with higher call prices). However I have a subscription plan which includes a monthly amount of talk what I am usually not able to zero out.
To be nice I used to interrupt their incoming calls and call them back, which is a quite uncomfortable process. (Interrupt the call, go to contacts → recent → make a call)

I would like to make a shortcut for this action to the calling screen.
Is anyone aware of such a patch?

In an ideal world I imagine this action to be shown only if an attribute in the Contacts is checked for the caller, but that’s an another level of user experience :smiley: