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