Call Timer is an application that limits call duration on Android, and you can set it to automatically initiate a call to a number continuously.

How to Set Up Call Back on Android?
Step 1: Install the application at Call Timer.

Step 2: Open the application > Choose 'Settings'.

Step 3: Select 'Free Numbers' > Choose 'Yes'.


Step 4: Tap on the circular button below > Select the number you want to set as the call limit > Choose 'Next'.



Step 5: In the 'Alerts' section, double-tap > Set it to 4 seconds > Choose 'Accept'.


Step 6: Select 'Auto Hang Up' > Set it to 3 or 4 seconds > Choose 'Accept'.

Step 7: Turn on 'Redial'.

Step 8: Go to your phone dialer and call the preset number. The device will automatically hang up and redial until you select 'Cancel' to end.

Above, I've guided you on how to set up call back on Android. Wish you all success!
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