“Call Ended" immediately after dialling number (iPhone X, IOS 11.4)
When I try to make a phonecall, either by dialling the number or by picking a number from my contact's list, I immediately get "Call Ended". My iPhone doesn't even start dialling the number. this happens with 70% of my contacts. When I dial call to same contact on my other iphone it goes throug. Any help would be greatly appreciated.