... and auto dial, the user can listen in, speak, sound siren, disarm remotely from users phone.7). 6 groups timed auto ... can be set to request assistance siren on/off11). Siren could be set to sound when away arming12). When using our ... backs up 12 hour when main fails; Built-in siren, and timer Ic, the time keeps right after power ... in, speak, arm, disarm, or turn on/off the siren from a remote phone