I’ve been trying to leave an answerphone message on a friend’s Three voicemail. The answerphone starts and runs for about a minute and then hangs up and says call failed. I don’t know whether it’s left a message and can’t contact them to find out. It’s happened on both my iPhones (which are on different networks) (they also have an iPhone) and it’s happened in different places using WiFi calling and a 4G call. Any idea what might be going on?
