Call Simulator Assistant User Guide

1. Install the APK

1. Open the download page on your Android phone.
2. Download the APK and allow installation from your browser or file manager if Android asks.
3. Open Call Simulator Assistant after installation.

2. Create a simulated call

1. Enter caller name and phone number.
2. Choose countdown, ringtone, vibration and call theme.
3. Enable requested permissions and test one call.

3. Create SMS or records

1. Open the SMS or call-record feature from the app home screen.
2. Fill in contact, content, time and state options.
3. Confirm the result and adjust details if needed.

Download

Start with the current USA English APK package. Download only from the official XApp link.

4. Run a one-minute reliability test

1. Set a short countdown of one minute.
2. Return to the home screen and lock the device.
3. Confirm the screen, ringtone and vibration appear as expected.
4. If the screen does not appear, check overlay, lock-screen and battery settings before increasing the delay.

5. Prepare a transparent demo

• Use fictional or consented names and numbers.
• Keep the scene on a device you control.
• Make it clear that public screenshots or recordings are simulated.
• Never request money, passwords, verification codes or personal information.

Troubleshooting scheduled calls

The countdown stops in the background

Allow background activity and exclude the app from aggressive battery optimization, then repeat the one-minute test.

The screen does not appear while locked

Review lock-screen display, overlay and auto-start settings. Manufacturer labels differ, so use the closest matching system option.

There is no sound

Check media, ringtone and notification volume, silent mode and Do Not Disturb settings.

Related setup resources

• Incoming call controls and local-call explanation
• Overlay, lock-screen and battery permissions
• SMS-style demo setup and boundaries
• APK version, license and support details