Hello Jairo,
the AP is for Controller based only usage, as Roland and I wrote. So you have to buy an controller (as virtual machine or as hardware) or you can connect you access point to an cloud controller.
But for the virtual controller you need a chargeable license, too.
The Extreme Networks works together with sales and integration partner how sell this products.
Therefore the easiest way is to get in contact with the person how sold you the access point.
Regards
Stephan
Regards
Stephan