... illegal intrusion state: 3, telephone monitoring function. 4, with back-up power supply, even after power failure alarm. 5, no ... secret code rewrite. Only manufacturers can re-set up a new code. 8, set a password to ... learn key match with the host. 9, no line Datie or short ... ). 11, the control module and GPRS module connected with the connectors can be replaced. However, the short ...