Clear memcache as needed.

app/dialplan_inbound/dialplan_inbound_add.php

@@ -563,6 +563,13 @@ if (count($_POST)>0 && strlen($_POST["persistformvar"]) == 0) {
 	//commit the atomic transaction
 		$count = $db->exec("COMMIT;"); //returns affected rows
 
+	//delete the dialplan context from memcache
+		$fp = event_socket_create($_SESSION['event_socket_ip_address'], $_SESSION['event_socket_port'], $_SESSION['event_socket_password']);
+		if ($fp) {
+			$switch_cmd = "memcache delete dialplan:public@".$_SESSION['domain_name'];
+			$switch_result = event_socket_request($fp, 'api '.$switch_cmd);
+		}
+
 	//synchronize the xml config
 		save_dialplan_xml();