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Phone can't make calls, calls drop, calling not working

If your phone or device won’t make calls, your Apple iPhone displays "SOS" or your calls drop, check the FAQs below. Or use our Troubleshooting Assistant to solve issues with your device, settings or apps.

You can expect to fix most issues in under 5 minutes. If you need more help we’ll connect you to a Customer Service Representative.

Troubleshoot your device.
Use our Troubleshooting Assistant to fix your device issues.