I've encountered a new problem. New calls to my iPhone automatically go to voice mail. If that same person calls my number a second time, my phone rings. How can I fix this so that new calls don't automatically go to voice mail? The problem showed up yesterday on my old iPhone 4. I replaced the iPhone4 today with an iPhone6. The same problem occurs. For example, I call my iPhone6 from my land line and the iPhone doesn't ring but immediately goes to voice mail. If I immediately redial my iPhone from the same land line, the iPhone rings and doesn't automatically go to voice mail. I never had this problem before, as far as I know. How can I fix it?
