How to connect to Estimote Beacon using gattools?

Hi

I do not want to connect to Beacons using the SDK. I am trying to connect using gatttool.
hcitool is able to find them but when I try to connect them using
gatttool -b MAC -I MAC > connect connecting... connect error: Connection refused (111)

Our beacons use an authorization protocol to prevent unauthorized parties from connecting and reconfiguring them. Which means that sadly, at this time, you can only connect through our SDKs. Why do you want/need to use gattool instead?

I wanted to test it out using Eclipse Kura and therefore, trying to connect it using gattool.

Is this still true? I’m trying to turn the gpio pins on using GATT without the SDK. Is that possible?