Dial 21 from your phone. Practical trick that saves you trouble

Written by hana

Call forwarding is a function provided by remote operators to allow users to forward an incoming call to another fixed or cellular number without changing the SIM card. This can come in handy when the line is busy, there is no answer, or when the phone is off. However, this feature can be the secret technique of malicious people to spy on phone calls. All they need is access to a mobile phone to activate this option by registering their phone number.

How to prevent spies from diverting your calls to another phone?

There is actually a simple way to circumvent this type of phone spying. even if you were

If you suspect that your smartphone has been used without your permission, you must first ensure that it has been misused by following the following technique:

  • Check if call forwarding is active on your phone

The call was intercepted on the phone

Phone call intercepted – Source: spm

Before canceling all call forwards, it is always useful to know if the transfers are active on the phone. To do this, simply type the code * # 21 # in the “Phone” application to receive the redirection information. With this code, your screen will turn gray and display information about voice, data, fax, SMS, etc.. However, asking for this code does not let you know if your phone is being spied on. It just gives you an overview of the status of the various call forwarding features. If hijacking is active and you haven’t configured it this way before, this may already indicate an intrusion.

  • Disable call forwarding on your phone

The code ##002# is dialed on a smartphone

Code ##002# dialed on a smartphone – Source: spm

Now that you have verified call forwarding, you can avoid all possible diversions on your phone by using a special code: ##002#. So, Open the calling app on your phone. Then dial this code and press the call button. By doing this, all call forwarding as well as SMS forwarding will be terminated. People who are likely to spy on you will not be able to intercept your calls on their cell phones. Note that these transfers can only be reactivated if someone later accesses your SIM card or your phone.

How do you enable call forwarding from your phone?

Touch keyboard

Touch keyboard – Source: spm

If you want to re-enable call forwarding on your mobile phone, Just enter the code *21* on your numeric keypad followed by the ten digits of the phone number that will receive the forwarded calls. Complete the process by adding the pound key #, then start the call. If you want to transfer an ongoing call, just dial the code * 69 * then the number that will receive the call followed by the # sign. To turn it off, dial #69#. This method is relevant to all telephone operators and can be done from a landline or mobile phone.

Other secret codes to test on your phone

Like the call forwarding code, the following secret codes may be especially useful to you.

On iPhone and Android:

  • #31# followed by the phone number to make a call to a hidden number.
  • *#06# to detect the IMEI number, phone identifier.

On the iPhone:

  • *#30# Enables or disables number recognition.
  • *33*# to activate the call barring feature. Disable call barring: #33*#
  • *3370# for better call quality. #3370# is the deactivation code.
  • *3001#12345#* to check network coverage.
  • *#5005*7672# to get the message center number.

On Android:

  • *#*#4636#*#* For Wi-Fi signal status, battery level, and other useful information.
  • *#*#7780#*#* To remove apps.
  • #*5376# to delete all text messages.
  • #*2562#, #*3851#, #*3876# to start resetting the phone.

As you understand, there is a smart way to circumvent potential diversions of your calls. Test this hidden function of your smartphone without further delay!

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