The Alert DeviceData field contains different values for different house/security modes, delimited by comma.
- Monitor mode
- Armed - away
- Armed - at home
- 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.