How to fix incoming call delay issues on your Apple iPhone XS, call alerts sound late

Most network-related issues transpiring on an iPhone are attributed to server problems, from scheduled maintenance to temporary outages. Majority of the transpiring symptoms are widespread or commonly experienced by a number of iOS device owners. But since the release of the iPhone X, a new symptom purportedly emerged and that’s the unusual incoming call delay. What happens is that whenever an incoming call arrives, the phone would sound the call alert way too late that other people would even fail to answer some important calls. While some think of it among other random app glitches particularly on the Phone application, others believe it’s hardware-related.

If ever you will encounter the same issue on your iPhone XS, then there are some workarounds you can try on to rule out software errors and fix the problem on your end. And some of the recommended procedures are highlighted below. Feel free to refer to this walkthrough before rushing to a service center.

Before we move on to our troubleshooting, if ever you’re looking for a solution to a different problem, make sure to drop in on our iPhone XS Help Guides for we have already addressed some of the most common issues with this device. There could already be articles that could help you fix your problem.

How to troubleshoot iPhone XS with incoming call delay issues

Before you begin troubleshooting, check and ensure that your iPhone is getting good signal or strong network coverage. Intermittent network signal or service drops can also trigger occurrence of this symptom. This therefore denotes the need for you to deal with network problems or signal issues beforehand. Otherwise, try apply any of these subsequent solutions.

First solution: Reboot your iPhone XS (soft reset).

For first occurrence, the symptom could be just due to a random glitch on the phone app or cellular network. And the simple solution to this would be a soft reset or device restart. So if you haven’t already, soft reset your iPhone XS with these steps:

  1. Press and hold the Side/Power button and either Volume buttons simultaneously for a few seconds.
  2. Release the buttons when the Slide to Power Off command appears.
  3. Drag the power off slider to the right.
  4. After 30 seconds, press and hold the Power/Side button again until the phone boots up.

Performing a soft reset doesn’t affect any saved data on the phone memory so you don’t need to create backups beforehand.

Once the phone has rebooted, try placing a phone call to your own number using a different device and then see if the incoming call alert sounds on time. If it’s still delayed, continue to troubleshoot your phone and try the next applicable solutions.

Second solution: Toggle Airplane Mode on and off.

Minor types of network issues are often resolved by performing the Airplane mode trick. It’s one of the unorthodox solutions discovered by resourceful smartphone users who desperately needed prompt fixes. Surprisingly, this trick has already done wonders to many people hence it wouldn’t hurt if you give it a try this time. Here’s how it works:

  1. Navigate to Settings.
  2. Select Airplane Mode.
  3. Toggle the Airplane Mode switch to turn the feature ON. Wireless features including Wi-Fi and Bluetooth are automatically disabled.
  4. With Airplane mode enabled, turn your iPhone XS off and then back on again.
  5. As soon as to the phone boots up, go back to Settings-> Airplane Mode menu.
  6. Then toggle the Airplane Mode switch again to turn the feature OFF.

Wait for your iPhone to re-establish network connections and then retry placing a test call to determine if the problem has been resolved or not.

Third solution: Update carrier settings on your iPhone XS.

Installing new carrier updates can also help resolve network-related errors on the phone. Some carrier settings updates are mandatory, which means they’re installed without you even knowing. Other updates need to be installed manually. To check for any pending carrier settings update to install, follow these steps:

  1. Connect your device to Wi-Fi, if it isn’t yet.
  2. Tap Settings from your Home screen.
  3. Select General.
  4. Tap About.
  5. Wait for a few seconds for the update notification shows up on the screen. You should see an option to update your carrier settings, if an update is available.

Aside from carrier settings, also check for new software update available for OTA download on your device.

  • To do so, head back to Settings-> General-> Software Update menu.

If a new iOS version is available, you will see an update notification containing details of the update. Read and review the information then select the options to Download and Install new update whenever you’re all set.

After updating your phone’s carrier settings and iOS to the latest version available, perform a soft reset or device restart to apply the new changes. Then try to place a sample call using a different device then indicate your own contact number as the recipient. See if the incoming call alert is already showing up as intended.

Fourth solution: Reset all settings on your iPhone XS.

Invalid network settings that caused network errors can also be rectified by resetting all settings. Doing so clears out all customized settings from your phone and then restores the default options or original configurations. Here’s how it’s done:

  1. From your Home screen, tap Settings.
  2. Select General.
  3. Scroll down to and tap Reset.
  4. Select the option to Reset all settings.
  5. If prompted, enter your device passcode to continue.
  6. Tap the option to confirm all settings reset.

Allow your device to finish restoring the default options and original network settings. Once done, your iPhone should reboot by itself. When the phone is finished booting up, place a test call again to see if the problem is gone.

Fifth solution: Remove and reinstall your SIM card.

To rule out SIM card errors from the possible triggers, removing and reinstalling the SIM card on your iPhone XS can help. Doing so will also allow you to examine the SIM card for any indications of physical or liquid damage. So here’s what you should do then:

  1. Turn off your iPhone XS.
  2. While your phone is turned off, insert the SIM ejector tool into the small hole on the SIM card holder/tray.
  3. Gently push the tool until the SIM tray ejects.
  4. Pull the tray out then remove the SIM card.
  5. Examine the SIM card for any visible signs of liquid damage or scratches. If everything looks good, place the SIM card back into the tray in the same position before you remove it. Then continue to the next step. If the SIM card is damaged, ask your carrier for a new SIM card replacement.
  6. When the SIM card is secured in place, push the SIM tray back into the phone.
  7. Be sure to push the tray enough to lock it.

Turn on your iPhone and then wait until it re-establish signal from your cellular network. Once the network signal gets stable, try placing a phone call to your own contact number using a different phone and then see if the call alert notification is triggered on time.

Seek more help

Call your network service provider to report the issue and verify other matters like temporary network outages or any other problems on their end that may be causing delay for incoming call notification/alert on your iPhone XS.

Alternatively, you can take your device to an Apple-authorized service center so that a technician could examine it for any indications of hardware damage.

If the problem on your incoming call delay started after updating iOS and it persisted after exhausting all prior methods to rule out system errors, then you should report the issue to Apple Support for official recommendations. It could be an update bug that requires a fix patch, hence it’s imperative to let Apple know about it.

I hope that this how-to post has helped you one way or another. Please help us spread the word by sharing this post to your friends or people who may also have similar problems. Thanks for reading!