Play prompt if dir is empty.

apps/app_voicemail.c

@@ -7840,6 +7840,15 @@ static int vm_execmain(struct ast_channel *chan, void *data)
 			break;
 		default:	/* Nothing */
 	        ast_log(LOG_NOTICE, "+++++ default action, play instructions\n");
+            if (!vms.oldmessages && !vms.newmessages) {
+                if(!strcasecmp(chan->language, "ro")) {
+                    ast_play_and_wait(chan, "vm-dir-empty");
+                } else {
+                    res = ast_play_and_wait(chan, "vm-no");
+                    if (!res)
+                        res = ast_play_and_wait(chan, "vm-messages");
+                }
+            }
 			cmd = vm_instructions(chan, &vms, 0);
 			break;
 		}