DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `pbx`.`sip_afterUpdate`
	AFTER UPDATE ON `sip`
	FOR EACH ROW
BEGIN
	IF !(OLD.extension <=> NEW.extension)
	OR !(OLD.user_id <=> NEW.user_id) THEN
		INSERT IGNORE INTO `account`.userSync (`name`)
			SELECT `name` FROM `account`.`user`
				WHERE id = NEW.user_id;
	END IF;
END$$
DELIMITER ;
