After I updated my iPhone 13 Pro Max to iOS 17. Every time I receive a call it hangs up around 8 min. Out going calls works though. i didn’t had any issue before the update.

Hi niko1995,

Per the article If you can’t make or receive calls on your iPhone working with your service provider is the first recommended step in addressing problems making or receiving calls on your iPhone.

That article also offers the following steps you can check for on-device settings:

"Check your settings

If you can’t make or receive calls on your iPhone, follow these steps, testing after each step.

Check your network settings

1. Reset your network settings. Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. This will erase all current saved settings, including Wi-Fi passwords, preferred networks and VPN settings.
2. Try making or receiving calls in another location.

Check your iPhone settings

1. Turn Airplane Mode on and off. Go to Settings and turn on Airplane Mode, wait five seconds, then turn it off.
2. Check Do Not Disturb. Go to Settings > Focus > Do Not Disturb and make sure it's off. Find out how to use Focus on your iPhone or iPad.
3. Check for any blocked phone numbers. Go to Settings > Phone > Blocked Contacts.
4. Check Call Forwarding. Go to Settings > Phone > Call Forwarding and make sure it's off.
5. Check Silence Unknown Callers. Go to Settings > Phone > Silence Unknown Callers. If this setting is turned on, a caller must be listed in your Contacts or Recents. Or they must have shared their number in the Mail app or sent you a message using that number in order for their call to go through. Add their number to Contacts to ensure the phone rings. Calls from some third-party apps may not go through."

Regards.

Hello niko1995,

If the steps mentioned did not resolve the issue with calls dropping after 8 minutes you'll need to reach out to your carrier. They would be best able to assist you with this.

If you've already reached out to your carrier we'd recommend contacting Apple Support directly. You can do that here:

Get Support

Cheers.