What does *#21 do to your Android phone? The code *#21# is used to check the call forwarding status on your Android device. When dialed, it reveals whether call forwarding is enabled for voice, data, fax, SMS, sync, async, packet access, and pad access. Understanding these settings can help manage how your calls and messages are handled.
How Does *#21# Work on Android?
The ***#21#** code is part of a set of secret codes embedded within Android devices. These codes are used for diagnostic purposes and provide quick access to specific settings or information. When you enter this code into your phone’s dialer, it queries the network to retrieve the call forwarding status, displaying results on your screen.
What Information Can You Get with *#21#?
Entering ***#21#** on your Android phone provides details about:
- Voice Call Forwarding: Indicates if incoming calls are diverted to another number.
- Data Call Forwarding: Shows if data services are redirected.
- Fax Call Forwarding: Reveals if fax services are forwarded.
- SMS Forwarding: Displays if text messages are sent to a different number.
- Sync and Async Forwarding: Indicates status of synchronization services.
- Packet and Pad Access: Shows forwarding status for packet data services.
Why Should You Check Call Forwarding Status?
Checking call forwarding status is essential for maintaining control over your communications. Here are some reasons why you might want to verify these settings:
- Security: Ensure that your calls and messages are not being redirected without your consent.
- Troubleshooting: Diagnose issues with receiving calls or messages.
- Privacy: Confirm that your private communications remain private.
How to Use *#21# on Your Android Device?
To use the ***#21#** code, follow these simple steps:
- Open the phone app on your Android device.
- Enter the code ***#21#** using the dialer.
- Press the call button.
- View the call forwarding status on your screen.
Understanding Call Forwarding Options
Call forwarding is a feature that allows you to redirect incoming calls to another number. This can be useful in various scenarios, such as when you are unavailable or traveling.
| Feature | Description |
|---|---|
| Voice Call Forwarding | Redirects voice calls to another phone number. |
| Data Call Forwarding | Forwards data services, affecting internet connectivity. |
| SMS Forwarding | Sends text messages to a different number. |
| Fax Forwarding | Diverts fax communications to another line. |
People Also Ask
What is the difference between *#21# and *#67#?
While ***#21#** checks the overall call forwarding status, ***#67#** specifically checks if call forwarding is activated when your phone is busy. This helps you understand different forwarding scenarios.
Can *#21# be used to disable call forwarding?
No, ***#21#** is a read-only code that displays current settings. To disable call forwarding, you usually need to use other codes like ##21# or access the settings menu on your device.
Is call forwarding a security risk?
Call forwarding itself is not a security risk, but unauthorized activation could lead to privacy issues. Regularly checking your settings with codes like ***#21#** helps ensure your communications are secure.
How do I disable all call forwarding on my Android phone?
To disable all call forwarding, you can dial ##002#. This code deactivates all forwarding settings, ensuring calls and messages are directed to your phone.
Are there other secret codes for Android?
Yes, Android devices have several secret codes for diagnostics and settings. Some popular ones include #06#** to check the IMEI number and ***#*#4636#*# for device information and testing.
Conclusion
Using the ***#21#** code on your Android phone is a straightforward way to check call forwarding status. By understanding and managing these settings, you can enhance your device’s security and ensure your communications remain under your control. For more information on managing your Android device, you might also explore how to optimize battery settings or secure your phone against unauthorized access.
