Android doesn't allow a program to actually reject a call. What you can do however is create a profile that has a silent ringone. It will be activated very quickly when a specified call is coming in. When it has stopped ringing (silently) apply a regular profile again.
Create a rule that will run a ping command (or anything else the checks something) every x seconds or minutes:
Create a second rule that will evaluate the result of the first rule and act upon it:
Create a rule that will use the dialer's notification and click its answer button (adapt the 1212 example number if you wish to filter specific callers):
https://server47.de/automation/images/examples/phone_call_answer
HINT: FOR THIS TO WORK RELIABLY, IT IS RECOMMENDED TO DEACTIVATE BATTERY OPTIMIZATION FOR BOTH AUTOMATION AND WIREGUARD.
Activate remote control in that app:
Create a start program action in Automation that just launches WG so it's not in the background anymore:
No parameters are required for this one:
Add another action that just waits for around 500 milliseconds. Then create another start program action with these settings:
Add 1 parameters as specified, value needs to be whatever you called your tunnel:
Create a start program action:
See the chapter "Controlling from external apps" from the app's FAQ.
Create a start program action:
