When the application opens, the display window will list the Queue(s) you are qualified to handle as well as the number of calls waiting in each queue. Your agent status will begin as Not Ready.
In order to receive calls in queue(s), you must change your agent status to Available. To do this:

Your status in the Current Agent Status section of the Admin Portal Monitor page will change to reflect your status in the CCA. For example, if your status in the CCA is Available, your status on the Admin Portal Monitor page will read "Available"; if you have initiated a transfer, you status will read "On Call – Direct Call Transfer".