ATM phone card system
Automatic coin collection device for a payphone provided...
Bucket type coin accumulation apparatus
Call blocking based on call properties
Call setup for prepaid services
Card pay telephone with speed dialing
Card-operated telephone
Charge minimizing callback system
Circuit for firing paystation coin relay using power derived fro
Coin blocker
Coin call telephone apparatus
Coin charging system for mobile telephony
Coin deflector for a coin telephone receptacle
Coin escrow apparatus with relay switch contact simulator
Coin fraud preventing unit and modular configurations for pay te
Coin fraud preventing unit and modular configurations for pay te
Coin fraud prevention system for coin telephones
Coin fraud prevention unit and modular configurations for pay te
Coin operated telephone auditor
Coin operated telephone auditor