Zico_amani Said:
"Call failed: my iPhone has been showing CALL FAILED since yesterday anytime I try to make a call I have don all sorts of things I found on google about fixing it but it’s still showing call failed so please what do I do "
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Troubleshooting Call Failed:
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. Contact your Carrier:
Having issues with Cellular, contact your Carrier, asking them to configure this to the correct settings. They configure all of this in the SIM card.