Transaction authentication for 1-way wireless financial messaging units

摘要

A secure financial messaging unit (906) includes a wide area radio frequency receiver (804), a selective call decoder (1004), a financial transaction processor (1014), a main processor (1006), and a message origination unit (1034). The message origination unit (1034) operates in at least one of a reply and confirmation mode and a originate and request mode to effect a wireless financial transaction using a local area link (924).