To resolve the issue of being unable to connect to video or voice calls in the BAND app, follow these steps:

1. Check Your Internet Connection
- Ensure that you have a stable internet connection, whether through Wi-Fi or mobile data. You can try switching between networks to see if the problem persists.

2. Restart the BAND App
- Close the BAND app completely and then reopen it. Check if you can now connect to voice or video calls.

3. Update the App
- Make sure that the BAND app is updated to the latest version. Go to the App Store, search for "BAND," and tap on "Update" if available.

4. Clear App Cache (if applicable)
- Go to your phone's Settings > General > iPhone Storage. Find BAND, and select "Offload App" which clears the cache without deleting your data. Reinstall the app after this action.

5. Check for iOS Updates
- Go to Settings > General > Software Update. Ensure that your device is running the latest version of iOS. If an update is available, download and install it.

6. Reboot Your Device
- Restart your iPhone. This simple action can resolve a multitude of temporary issues.

7. Permissions Check
- Ensure that BAND has the necessary permissions to access your camera and microphone. Go to Settings > Privacy > Camera and Microphone, and confirm that BAND is enabled.

8. Adjust Network Settings
- Reset your network settings by going to Settings > General > Reset > Reset Network Settings. This may require re-entering Wi-Fi passwords.

9. Reinstall BAND
- If the issue continues, uninstall the BAND app and reinstall it from the App Store. This will provide a fresh installation which can fix underlying problems.

10. Contact Support
- If none of these steps work, you may need to reach out to BAND's support team for further assistance regarding the specific “Video Call Ended” message.

By following these steps, you should be able to troubleshoot and resolve your call connection issues in the BAND app. If problems persist after these efforts, detailed support from band may offer additional insight. - learn more - learn more - learn more