Index: apps/app_meetme.c
===================================================================
--- asterisk-1.8-tpn/apps/app_meetme.c	(revision 385521)
+++ asterisk-1.8-tpn/apps/app_meetme.c	(working copy)
@@ -5081,7 +5081,7 @@
 	}
 	AST_LIST_UNLOCK(&confs);
 	if (!conf)
-		return AST_DEVICE_INVALID;
+		return AST_DEVICE_NOT_INUSE;
 
 
 	/* SKREP to fill */