You are referring to e-0.13-n
We have an issue openned on the /e/gitlab
https://gitlab.e.foundation/e/backlog/-/issues/3009
I liked e-0.9-p from @Chimpthepimp that was fully working.
Now, I use e-0.18-r from @itsclarence with SimpleDialer app as a workaround to make the incomingCalls catchable.