Index: apps/app_voicemail.c
===================================================================
--- apps/app_voicemail.c	(revision 373118)
+++ apps/app_voicemail.c	(working copy)
@@ -1810,7 +1810,10 @@
 
 	/* find real message number based on msgnum */
 	/* this may be an index into vms->msgArray based on the msgnum. */
-	messageNum = vms->msgArray[msgnum];
+	if(msgnum < 0)
+		messageNum = vms->msgArray[vms->curmsg];
+	else
+		messageNum = vms->msgArray[msgnum];
 	if (messageNum == 0) {
 		ast_log(LOG_WARNING, "msgnum %d, mailbox message %lu is zero.\n", msgnum, messageNum);
 		return;