I have the same problem on redmi note 8t phone.Phone app force close indefinitely durring a call.
No other phone app is installed.
Joyeuse Miui Stable 12.5.3
LE: turns out that issue is triggered by call recording. Everytime i press Record button in a call, dialer restart itself.
LLE: updating Phone.apk to this newer version fixed my problem.
Firmware xiaomi.eu_multi_HMNote8T_V12.5.2.0.RCXMIXM_v12-11.
As soon as I press the record button during a phone call, the application restarts.
I tried to install "Phone.apk" from your link. But failed to install: "Installation of system applications from unknown sources is prohibited".
Can anyone suggest how to solve this problem? preferably without root rights.
This is my first post on this forum, I beg your pardon if something is wrong or wrote in the wrong place.