Hi all,
I developed a little gateway to replace / simulate Videofied RSI alarm monitoring center.
https://github.com/Mickaelh51/rsi-alarm-gateway
Diagram:
RSI_gateway -> MQTT broker -> HA
Features:
- HA MQTT discover
- Zones
- Alarm devices (Panel, keypad, IR, etc …)
- Users (code or badges)
- Alarm events (autoprotection, alert, 5 wrong codes, power status, etc …)
I use it since one year, and It works like a charm 
Fell free to ask me other information, or participate in this project
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