Use APKPure App
Get Call Looper (Redialer) old version APK for Android
Define many numbers and give them a missed calls in an infinite loop!
You need to make a few calls of a certain length to a few numbers?
Do you want to give a friend missed call one after the another?
This application will allow you to define up to 5 numbers and call them constantly.
You can determine how long the call takes and what is the break before next call.
This app is open source:
https://github.com/pzienowicz/CallLooper