Why would one of our droid Maxx phones suddenly stop going to the regular voice mail? Instead we get this thing...."Welcome to the Message Management System".....and asking us to enter the number we are trying to reach. The regular voice mail is set up and was working, but all of a sudden we are getting this new message management system message. And to top it off, it doesn't work anyway. If I enter the telephone number, it says it is not part of the system. Has anyone else experienced this?