My brother has Time Warner Cable IntelligentHome, their security and remote control system, and was just notified he has a few weeks to find a replacement.
Given my experience he came to me for suggestions. It is just too bad I can’t recommend VeraSecure + VeraProtect. I have a VeraSecure, and love it for automation, but it doesn’t have any alarm system functionality. It has a built-in siren, battery, plus 2Gig sensor compatibility - that is all that makes it different from the VeraPlus. To make it a functioning alarm system you have to do something like: Full Instructions: Setting up VeraSecure as a Home Security System - Door Locks & Sensors - Ezlo Community, which is crazy and more than I want to support. If it had alarm system functionality out of the box (wizard to configure including the 2 Gig keypads), that would be something different.
If he didn’t live 5 hours away I would go rip out his unused/ancient hard-wired alarm system and put in a DSC 1864 in its place with an Envisalink module to get connectivity/alerts. And then worry about automation…