Home Security with Core service level?

[bcm00re]

My account currently shows the follow:

• Current service level - Core
  Base service tier - Ooma Core (U.S.)

I did get an Ooma Telo when you were offering them as upgrades to customers using Ooma Cores -- but I have not yet actually installed the Telo (primarily because my Core still works well and I saw no reason to stop using hardware that was still functional). I assume I would need to physically replace my Core with the Telo to use Ooma Home Security, but I wanted to confirm that I could get the service for one sensor (for free) with the way my account is setup. Is that true? Or is my old/legacy type of service level not compatible with Ooma Home Security? Lastly, is Ooma Home Security with one sensor free for basic subscribers for the foreseeable future -- or is this some limited time offer?

[Tom]

Yes, just unplug your hub and then plug in the telo. Wait for it to download the OHS software and upgrade to 191303 (wait like 30 min), then download the app. The one sensor free offering works with Core. This is not a limited time offer but specifically designed to allow people to try OHS.