Why does my machine take a message but doesn't show it

My Ge 29871 answers but does not record message or plays garbled message or cuts off the caller even though set to 4 minutes message time

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0