Why can’t I make calls on my iPhone 6

Bigjhunt56 Said:

"My iPhone 6 will not allow me to dial out numbers"

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Troubleshooting Calls:

A. Start Here: If you can't Make or Receive Calls on your iPhone - Apple Support

B. "No Service":

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

C. "No SIM":

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

C. Install a Cellular Update:

It might be prompting you for a cellular update to install. So, go here for that. Update your carrier settings manually on your iPhone or iPad - Apple Support

D. Update the iOS Using a Computer:

• Use my User Tip:  Update your iPhone Using a Computer - User Tip
• IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update

Start here: If you can't make or receive calls on your iPhone - Apple Support a contact your carrier for help with this.