Stop stream when interrupted by '#' or '*' or '0' (bug #1689)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3032 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -1577,6 +1577,8 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, int silent, int
 				res = 0;
 			}
 		}
+		if (res > 0)
+			ast_stopstream(chan);
 		/* Check for a '*' here in case the caller wants to escape from voicemail to something
 		other than the operator -- an automated attendant or mailbox login for example */
 		if (res == '*') {