Post originale di: C. Kelley ,
Fix for iPhone keeps ringing but screen freezes: I know this is an old thread, but maybe it will help someone else. This happened on my Mom‘s iPhone 6. It started after I enabled Announce Calls for “Always” for her (under Settings/Phone). I turned off Announce Calls and the problem was fixed. The feature works on my iPhone 8 so it also could be a software update issue.