1-800 numbers

Hi there Sinas56,

If you are having issue making calls on your iPhone, these recommendations from If you can't make or receive calls on your iPhone can help resolve what's happening:

Update your software

1. Check for a carrier settings update.

2. Check for an iOS software update. Some updates might require a Wi-Fi connection.

Check your settings

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

Check your network setings

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 to make or receive 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. Learn 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 the setting is on, a caller must be listed in your Contacts or Recents. Or they must have shared their number in Mail 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 might not go through.

To avoid missing calls from a contact, add their number to Contacts to ensure that your phone rings.

Learn more

* Find out what to do if "No Service" or "Searching" appears in the status bar.

* If you still can't make or receive calls, contact Apple Support, then follow the steps to complete your request.

If this continues after following that, please provide more details on what exactly occurs when you try to make a call to these phone numbers so that we can continue to assist.

Cheers!

You need to contact your cellular carrier about this. There is nothing about the phone or any settings on the phone that would prevent it from being able to call 800 numbers. That's strictly a function of your carrier.