... time-setting, convenient for users and alarm center to control the system.7. Can set 5 phone numbers ,which used to receive alarm ... to inform users if power failure.9. Intercom function: can communicate with the scene people ,two-way intercom.10. Listen-in function ... ,Home Arm ,disarm or panic alarm, convenient and practical.12. Can control the system by calling-in, such as arm, disarm, listening-in ...