View source for Alert DeviceData

The Alert DeviceData field contains different values for different house/security modes, delimited by comma.

# Monitor mode
# Disarmed
# Armed - away
# Armed - at home
# Sleeping
# Entertaining
# Extended away

Each value can contain two characters, a N and a number.

Number alone means:
* 0 - Do nothing
* 1 - Simple alert event
* 2 - Play security announcement
* 3 - Take picture

A prefixing 'N' sets bNotify - need to detail what exactly this means.