--- asterisk/channels/chan_sip.c.orig	2003-10-24 14:17:41.000000000 -0400
+++ asterisk/channels/chan_sip.c	2003-10-24 14:18:09.000000000 -0400
@@ -5013,13 +5013,13 @@
 						ast_log(LOG_NOTICE, "Nothing to pick up\n");
 						transmit_response_reliable(p, "503 Unavailable", req);
 						p->alreadygone = 1;
-						/* Unlock locks so ast_hangup can do its magic */
-						ast_mutex_unlock(&p->lock);
+						/* Unlock locks so ast_hangup can do its magic */ ast_mutex_unlock(&p->lock);
 						ast_hangup(c);
 						ast_mutex_lock(&p->lock);
 						c = NULL;
 					} else {
 						ast_mutex_unlock(&p->lock);
+						ast_setstate(c, AST_STATE_DOWN);
 						ast_hangup(c);
 						ast_mutex_lock(&p->lock);
 						c = NULL;