Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 368807)
+++ channels/chan_sip.c	(working copy)
@@ -22788,8 +22788,6 @@
 				 */
 				/* Fall through */
 			case SIP_GET_DEST_EXTEN_NOT_FOUND:
-			case SIP_GET_DEST_REFUSED:
-			default:
 				{
 					char *decoded_exten = ast_strdupa(p->exten);
 					transmit_response_reliable(p, "404 Not Found", req);
@@ -22798,6 +22796,10 @@
 						" '%s' rejected because extension not found in context '%s'.\n",
 						S_OR(p->username, p->peername), ast_sockaddr_stringify(&p->recv), decoded_exten, p->context);
 				}
+				break;
+			case SIP_GET_DEST_REFUSED:
+			default:
+				transmit_response_reliable(p, "403 Forbidden", req);
 			} /* end switch */
 
 			p->invitestate = INV_COMPLETED;