Abstract: There is disclosed a secure storage unit for secure delivery of goods and a secure method for the delivery of such goods. In one embodiment, the secure storage unit is accessed by a two-part access code. In another embodiment, the secure storage unit is accessed by the use of an access code in a certain time frame. A central controller preferably controls the delivery technique. The technique is particularly advantageous when used as a method of delivering goods ordered over the Internet. The delivery technique is controlled through a central management system or hub, access to which may be provided through a website. Participating retailers can be accessed directly or through the central management system.

Abstract: A network operations center transmits a data message to a wireless mobile unit and waits for a data acknowledgment message. If no acknowledgment is received within a specified time, the network operations center sends a probe message to attempt to locate the mobile unit and waits for a probe acknowledgment message. If still no acknowledgment, the network operations center marks the data message as undelivered and stores it for future delivery. If a mobile unit receives a probe message while its transmitter is powered off, it displays an indication to the subscriber that there is a message waiting to be delivered. The subscriber can then dial into the network operations center to retrieve the message. Or, when the transmitter of the mobile unit is powered back on, the mobile unit sends a registration message to the network operations center; and upon receiving the registration message, the network operations center automatically re-transmits the undelivered data message to the mobile unit.