Circulatory dialing four telephone, cell phone, or pager numbers, and each phone number could be up to 16 digits.

  Easy programming, parameters and data will be saved and will not lost during power down 

Alarm report dial could be triggered by normally-open relay, normally-closed relay, or 12V DC power supply

Alarm reporting will include a 20-second recorded voice message and this recorded message could be updated

 Alarm can be used for any host connected to realize telephone voice alarm