Account balancing and monitoring system for a telecommunications
Adaptive communication system within a transaction card network
Automated interactive bill payment system
Automated interactive bill payment system using debit cards
Automated interactive bill payment system using debit cards
Automated interactive bill payment system using debit cards
Automated interactive bill payment system using debit cards
Automated vending of cellular hand-held telephones and cellular
Call block disabler
Cellular mobile radio credit card system
Cellular mobile radiotelephone-based system for rental of mobile
Communication system
Content distribution system and method
Control and surveillance system for prepayment public telephone
Coordinated multiple telephone station system
Coordinated multiple telephone station system
Credit card reader
Credit control system for long distance telephone services
Credit status checking system for transaction processing system
Customer activation system