Data card terminal for receiving authorizations from remote loca
Data transmission over the public switched network
Direct telephone dial ordering service
Direct telephone dial ordering service
Financial card authorization system
In-store multiple device communications unit and centralized dat
International authorization system
Mediation of transactions by a communications system
Method and apparatus for facilitating financial transactions wit
Method and apparatus for restricting credit card communication c
Method and apparatus for telecommunications network routing
Method and device for crediting a creditable machine
Method and system for controlling authorization of credit card t
Method and system for controlling authorization of credit...
Method and system for mediating transactions that use portable s
Method and system for remote dial-up ATM
Method of renting portable-type communicating devices
Personal reader capture transfer technology
Point-of-sale system using multi-threaded transactions and inter
Radiotelephone credit card call approval synchronization