Not sure but isn't that what the konnected is perfect for. You can utilize the same sensors and wiring that you currently have and update the brains to be integrated. I wish I had an old system so I could play with this.
Noonlight was also looking great for something like this but its US only. You flip a switch in HE and it notifies them. They text and call you and finally call authorities if they get no answer.
I was also going to look into cell backup for my hub as I already have a UPS on it, but just haven't gotten to that point yet.
