... trasmission,phone audible alarming and SMS alarming 29 wireless zones (Each zone supports up to 4 ... for remotes (Supports up to 4 remotes or wireless keypads per zone). Sipports 8 more wired ... system by 5 ways: SMS, Main Host(Keypad), Wireless Keypad, Keychain Remotes, or even remotely by phones. ... it will sound fast “bi bi bi”)Support wireless “ding-dong” doorbell function (Optional)Support CID ...