Q: cannot make phone calls after update to iOS version 8.1.3
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Feb 22, 2015 9:11 AMby ChitlinsCC,What you describe...
- Two iPhones
- Same issue
- Same general physical location (your house?)
... sounds very much like " cellular signal dead spot " OR "radio frequency interference"
Test this by noting exactly where in your house that this takes place and also where it does NOT. Repeat until you have a "Map" of the good and bad spots.
You cannot do much about the cellular signal but may be able to troubleshoot the interference problem. This document talks about Wi-Fi and Bluetooth, but the "Sources" might also apply to your cellular signal problem - radio waves are radio waves.
Wi-Fi and Bluetooth: Potential sources of wireless interference - Apple Support
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Feb 22, 2015 9:15 AMby ChitlinsCC,Ooops! I forgot this one > If you see No Service in the status bar of your iPhone or iPad - Apple Support - ÇÇÇ
