diff -Nru a/channels/chan_sip.c b/channels/chan_sip.c
--- a/channels/chan_sip.c	2005-03-22 13:42:32 -07:00
+++ b/channels/chan_sip.c	2005-03-22 13:42:32 -07:00
@@ -7415,22 +7415,15 @@
 				ast_log(LOG_WARNING, "Don't know how to handle INVITE in state %d\n", c->_state);
 				transmit_response(p, "100 Trying", req);
 			}
-		} else {
+		} else if (!ignore) {
 			if (p && !p->needdestroy) {
 				if (!p->jointcapability) {
-					if (ignore)
-						transmit_response(p, "488 Not Acceptable Here", req);
-					else
-						transmit_response_reliable(p, "488 Not Acceptable Here", req, 1);
-					p->needdestroy = 1;	
+					transmit_response_reliable(p, "488 Not Acceptable Here", req, 1);
 				} else {
 					ast_log(LOG_NOTICE, "Unable to create/find channel\n");
-					if (ignore)
-						transmit_response(p, "503 Unavailable", req);
-					else
-						transmit_response_reliable(p, "503 Unavailable", req, 1);
-					p->needdestroy = 1;	
+					transmit_response_reliable(p, "503 Unavailable", req, 1);
 				}
+				p->needdestroy = 1;	
 			}
 		}
 	} else if (!strcasecmp(cmd, "REFER")) {