Cannot receive or send calls

Kbb1951 Said:

"Cannot receive or send calls: Apple iPhone 12 max cellular error message cannot make calls"

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Troubleshooting iPhone Calling:

Visit these Links:

• Calls: If you can't Make or Receive Calls on your iPhone - Apple Support

• Messages: If you can't Send or Receive Messages on your iPhone, iPad, or iPod touch - Apple Support

• Errors:  If you see a Cellular, Ultra Wideband, or Apple Pay Issue Message after an iOS Update or Restart - Apple Support

• "No Service": Is "No Service" shown on the top-left corner of your screen? If so, go here to fix this: If you See No Service or Searching on your iPhone or iPad - Apple Support

• "No SIM": If "No SIM" is shown on the top-left corner of your screen, go here to fix that: If you See 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support

• Report this to Apple:

Do your part: Let Apple know what is going on here. Provide them with feedback on this. They may not get back to you directly, but the more feedback they received on this, the more they will know what is going on, and what needs to be fixed in updates to come.

1. Go Here: Feedback - iPhone - Apple
2. Comment: that this all began after installing an update, and how you have troubleshot this, thus far. Include the URL of this thread.
3. Select: "Bug Report" for the "Feedback Type"
4. Proceed from there aw necessa