| http://www.w3.org/ns/prov#value | - These embodiments are particularly well suited to customers who usually carry a cellular phone or PDA. In addition to all the functions described above in connection with the embodiments of FIGS. 17 and 18, the integration of the ordering device with a cellular phone permits downloading to the phone of identification codes, voice verification of the customer and, in certain embodiments, a voice or
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