| http://www.w3.org/ns/prov#value | - Still another embodiment is an apparatus for verifying a user identity, comprising: a PSTN interface; a data network interface; and a call processing system configured to: receive via the PSTN interface from a first user computer terminal a call handling instruction for calls placed to a first telephone number; transmit a first code to the first user via the computer terminal; inform the first use
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