A method for providing assured communications in a two-way wireless communications system is disclosed. An instruction is constructed at a first device for wireless transmission to a second device where the instruction is received by the second device and ultimately seen by the user. The...http://www.google.es/patents/US5793301?utm_source=gb-gplus-sharePatente US5793301 - Assured two-way wireless communication system for financial industry transactions
Assured two-way wireless communication system for financial industry ...
