I have an IPhone 6 while on call suddenly the voice will fade out and the call drops with a message system failure. It happens every day. Some times we don't get system failure but the call drops/ fails every time. Its not network failure.
iPhone 6, while on call suddenly the voice will fade out and the call drops with a message system failure. It happens every day. Some times we don't get system failure but the call drops/ fails every time. Any solution??
iPhone 6, iOS 12