Coban GPS303F - Silent Mode; Disarm

and siren beeps 3 times, that means door is not closed.
6.23Silent Mode
6.23.1 Set up silent mode by SMS
Send silent+password to tracker, it will reply silent ok! that means
tracker enters
ARM & silent mode, Siren won’t be sound after alarm is triggered
, but tracker will send alarm SMS to authorized number.
Send disarm+password to quit ARM & silent mode.
6.23.2 Set up silent mode by remote controller (Option for model G)
Press in disarm state for 0.5 second, the siren will beep one time, the
car will enter ARM & Silent mode. Siren won’t be sound after alarm is
triggered, but tracker will send alarm SMS to authorized numbers.
Press to quit.
6.24 DISARM
6.24.1 DISARM BY SMS
Send command “disarm+password” to tracker, tracker will disarm and
reply “Tracker is deactivated”, then it will turn off the alarm of door,
shock sensor and ACC, and no alarms if open door, trigger shock sensor
and ignition.
6.24.2 DISARM BY Remote controller (Option for model G)
Press on remote controller for 0.5 seconds, the car will enter DISARM
state and, siren beeps two times and tracker doesn’t send message.