Included with your Delivery Dropbox™ is a simple sign informing the delivery person how to access and securely deliver your package(s). Once all carriers are cloud connected to the box via the barcode, the delivery person will scan your package signaling to open the unit before reaching your doorstep. Since the Delivery Dropbox™ doesn’t need to connect with the carrier in the short term, your unit will work with them right away without any connection.