@@ -581,9 +581,12 @@ int tps_reinsert_via(sip_msg_t *msg, tps_data_t *ptsd, str *hbody)

 int tps_reinsert_contact(sip_msg_t *msg, tps_data_t *ptsd, str *hbody)

 {

 	str hname = str_init("Contact");

+	int method = get_cseq(msg)->method_id;

-	if(tps_add_headers(msg, &hname, hbody, 0)<0) {

-		return -1;

+    if (!(method & (METHOD_CANCEL|METHOD_BYE|METHOD_PRACK))) {

+		if(tps_add_headers(msg, &hname, hbody, 0)<0) {

+			return -1;

+		}

 	}

 	return 0;