Unable to make calls using my iPhone

"ii can’t not call nobody"

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Is cellular not working? Or is your iPhone frozen?

Troubleshooting Cellular Service:

A. "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

B. No SIM":

Is "No SIM" 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 Carrier Updates.

Because you are using an iPhone, contact your Carrier, request carrier updates. Once they are installed, see if it then works.  Go Here: Manually Update your Carrier Settings on your iPhone or iPad - Apple Support

Since it can't call......you won't be able to use the phone to contact your carrier so they can troubleshoot and fix the issue.

Instead, you need to use or borrow another phone to contact your carrier.

"ii can’t not call nobody"

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If you iPhone is frozen, try the following...

Troubleshooting a Frozen iPhone:

I. Start with a Force Restart:

Refer to this link: Force Restart iPhone - Apple Support

II. No Success?

Refer the the following for troubleshooting techniques...

• If the Screen isn’t Working on your iPhone or iPad - Apple Support

• If your iPhone is Stuck on the Apple Logo - Apple Support

• If your iPhone Won't Turn On or is Frozen - Apple Support

• If you Need More Help - iPhone - Apple Support

Fixing a Boot Loop:

Your iPhone is in a Boot Loop. This typically occurs when you go abuut installing an update, and it stalled while in the process. Go here to fix that: How to Fix an iPhone in a Boot Loop - User Tip