This article will guide you on how to use the Quick Disposition widget on the Agent interface.
Your admin will need to activate this on their end for you to use this widget.

To use this, while on a call, click the CRM folder which is the white folder icon on the top left. 

You may click also the wrapup if you want to end the call quickly.

Quick Disposition widget will appear on the left-hand side.

You can now select the disposition you want to use. From the colors of the buttons, the blue buttons are the statuses where the system will Blind Transfer the call to a predefined number. The Red buttons are to End the Call and will use the disposition assigned to it.

You can also transfer the call to the predefined numbers from the drop-down menu. Switch Callback to Yes to set a scheduled callback. Select the status you want to use after you're done with the call.