Once you are setup and ready to go the system will tell you with a message "Congratulations!"

After logging in click Open my store to open your virtual store and start taking orders.

The next screen to appear is the orders screen (below).  When this screen is up and running your store is Open

Tap the Enable sound button to test the audio on your iPad, making sure it is at full volume and in the on position.

If you don't hear any audio after clicking Enable sound, check your settings, close, re-open your store and try again.