As above look at pictures Mr Norman is correct it needs another cable going back to the router and WiFi is probably just your phone or device viewing via WiFi
But then I suppose if box is big enough you could also house a powerline adaptor with PSU and send back data through that , it might work might not ......
You could put a box PSU where cable enters the wall inside depending on if it looks any good , so 240 in and 12v to camera or whatever it needs then WiFi to router or whatever
This is blag , hybrid blag dot com
Of course hybrid could mean the panel is in Norfolk , no one saying you a numpty and if you have every manual possible your sorted then , coolio
Yeah dude , we different angle, and I speak with forked tongue
Triggering you mean intruder trigger or bell trigger
Bell output and intruder outputs can be different on some panels
The advent dialler will trigger if on power up of the panel it's output switches , although lol the panels I have used it on never have done this with the advent dialler
I think your confusing the two issues by talking about the dialler being triggered and the power fault
As I don't get why swb responded about dialler as opposed to the power issue