Little-Known iPhone Phone Call Features and Tips That May Surprise You

The dialer on your iPhone has more to offer than just entering phone numbers and making calls. It allows you to enter secret codes that help you learn more about your iPhone, troubleshoot issues, and even hide your caller ID during outgoing calls.

Secret codes are known as Unstructured Supplementary Service Data (USSD), which are character strings primarily used by developers and technicians to fix smartphones. Sometimes, entering a code immediately triggers an action, while other times, you’ll need to tap the Call button to activate it. Here are iPhone call tips and secrets that will come in handy.

iPhone Call Features

iPhone Phone Call Features and Tips

#1 Wi-Fi calling

Certain carriers such as At&t, Verizon, and Sprint also offer Wi-Fi calling, which enables you to make calls using your Wi-Fi. To activate Wi-Fi calling, follow these steps: 

  1. Open your Settings and select the phone option. 
  2. Look for Wi-Fi calling and tap on it. 
  3. Turn on the slider next to “Wi-Fi calling on this phone”.

#2 Always take calls on the iPhone’s speaker

If you’re tired of holding your iPhone to talk, there’s an easy solution. You can use the speaker option to take all your calls. No need to worry, you can override this anytime by tapping the speaker button during a call. To enable automatic speaker mode for incoming calls, follow these simple steps: 

  1. Go to Settings on your iPhone. 
  2. Tap General, then Accessibility. 
  3. Scroll down until you find the option called Call Audio Routing. 
  4. Tap on Call Audio Routing and select Speaker from the options. 
  5. From now on, all incoming calls will be answered in speakerphone mode.

#3 Call recorder

Unfortunately, there are no iPhone call settings that would allow you to enable call recording. The good news is, you just need the Call Recorder for iPhone app and some time to get used to it. To enable a voice call recorder, you need to enter the application and start recording.

Actually, it’s not difficult to record a phone call, but it will bring numerous benefits in the future. You can enter the Call Recorder for iPhone application at any time and listen to the recording in high quality. It may just be a reminder or proof. Use the notes as you please.

#4 Use secret codes

Apple has tucked away some handy phone features deep within your smartphone. While not universally compatible, they can prove useful in specific situations. Let’s explore a few of these secret features (with gratitude): 

  1. Call Waiting Activation: Dial *43# and you’ll receive notifications about incoming calls while you’re already on a call. You can even answer the new call without disconnecting the current one. To disable this feature, simply dial *43# again. 
  2. Number Concealment: To prevent your number from being displayed on Caller ID, dial *#31#. To deactivate this feature, dial *#31# once more. Alternatively, you can type #31# followed by the desired number to hide your number for that specific call. 
  3. Direct-to-Voicemail: To redirect all your calls to voicemail, dial *#21#. Remember to dial this code again to turn off the feature.

#5 Response message

Simply tap the message, and you’ll have the option to choose from up to three pre-prepared text responses. By default, these options include: 

  1. Sorry, I can’t talk right now. 
  2. I’m on my way. 
  3. Can I call you later? These responses may be sufficient for your needs, but you can personalize them to better suit you. To do so, navigate to Settings>iPhone>Respond with Text, select one of the options, delete it, and replace it with a more suitable response for you.

#6 Make emergency calls

If your iPhone is locked and you need to make an emergency call, you have a few options. Swipe right on your screen and tap on “Emergency” to open the dialer, then you can dial any emergency number. Alternatively, you can quickly tap the power button five times to bring up the “Emergency SOS” slider and drag it to place an emergency call.

#7 Hide Caller ID

If you want to hide your name or phone number and make anonymous calls, you can use the *67 secret code before the phone number you want to call. This code will hide your caller ID on the recipient’s screen.

When you call someone, they will see “Unknown,” “Private,” or “No Caller ID” on their screen. It’s one of the easiest and most effective ways to block your caller ID on your iPhone.

#8 Stop receiving robocalls

To avoid calls from unknown numbers, follow these steps: – Open the Settings app on your iPhone. – Scroll down until you find the option called “Silence Unknown Callers”. – Turn it on. This way, you will only receive calls from people in your Contacts list. Other calls will go straight to Voicemail, so make sure to check your messages regularly.


Here are some tips and tricks to enhance your calling experience on iPhone. We hope this article provided helpful tips and tricks for calling with your iPhone. Thank you for reading this article. If you have any questions, feel free to ask in the comments below.

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