If you have an iPhone 18 Pro Max and can’t make calls on AT&T, Apple will replace the phone for free.
If you have an 18 Pro Max on AT&T and CAN make calls, update to iOS 27.0.1 asap to prevent any issues.
If you’re on Android, enjoy your weekend!
www.cnet.com/tech/mobile/...
cnet.com
iPhone 18 Pro Max Can't Make a Call on AT&T? Apple Says It Will Replace It for Free - CNET
A software and carrier settings update should prevent future problems, but people who have been affected will need a replacement phone.