This isn't possible, the ATS1000A is a certified intrusion alarm.
I'm a senior engineer at a security company in the Netherlands which sell/install these systems.
UTC Fire&Security uses a closed API for their app, if you want acces to this API you need to pay a lot of money and sign a NDA.
If you look at it from a security perspective it is better if the API is closed (hackers, etc)
If you have questions, don't hesitate to ask them

Patrick.