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How to use codes on the iPhone dialer to release useful functions

The iPhone dialer (iOS) has many more functions than just typing in the numbers you're calling. By entering the correct string of characters, the user can unlock advanced functions and discover useful information such as the cell phone's IMEI and the number of call forwarding.

Want to know how to make the most of all the features that the Apple smartphone has to offer? Here are nine "hidden" codes that have been selected for you to use on your iPhone right now.

How to set up a four-digit lock code on the iPhone

Discover ten secret codes to use on the iPhone

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* # 06 #

The above code automatically displays the IMEI number of your iPhone. It is important to save this number in different situations. If you are stolen, for example, it is possible to lock the device by the IMEI number.

Code on iPhone displays the IMEI number

* # 61 #

This code lets you know for which number missed calls are routed. That is, whenever you do not answer a call, it is forwarded to another number. With this code you can know what it is.

Code lets you know for which number your missed calls are forwarded

* 3001 # 12345 # *

The signal strength of your carrier is displayed on the iPhone with five polka dots. However, some users do not find this method very effective, preferring numbers. Using the above code, the balls drop and give rise to numbers. If the numbering displayed is about -50, you can even stream HD videos (720p). Now, if it is about -120, the connection is very slow.

Code allows you to see the signal strength in

* 43 #

The above code enables standby connections. If you already have a call in progress and someone else calls, you can answer the call while the call is on hold. To turn off the functionality, simply enter # 43 #.

Code lets you leave calls on hold on iPhone

* # 31 #

This code activates the unknown or anonymous number function. That is, whenever you call someone, your mobile number will not be displayed. It is important to note that this feature must first be released by your service provider.

Code allows you to enable the unknown number feature

* # 31 # + Telephone number

If you do not want all your calls to go with the unknown number, use the above code. Just type * # 31 # and the phone number to whom you want to call that your number will be hidden only for that contact.

Code allows you to make an anonymous number call on iPhone

* # 21 #

This secret code lets you see if you have the call forwarding function turned on. With this, whenever someone calls you, the call will be forwarded to another number. If "Inactive" is displayed, the function is not activated by your service provider.

Code on iPhone allows you to check for active call forwarding

* # 33 #

With this code, you can check call controls. In other words, you can check if there are any restrictions on voice calls, data, SMS, fax, among others.

IPhone code for call control

* # 5005 * 7672 #

This code is used to check the SMS center number. This number probably manages all the SMS messages you send and receive.

IPhone code to display SMS center number

iOS 10 changed the notification touch of my iPhone: how to change? Discover in the Forum.