Patent ID: 7873726

Claim:
A method of a terminal adapter interworking a transaction oriented request received on a terminal interface connected to a terminal with a first communication path providing access to a network, comprising the steps of: receiving a first transaction request message on the terminal interface of the terminal adapter from a terminal incorporating a card reader; retrieving predefined information stored in the terminal adapter associated with a network destination for said terminal interface; mapping the first transaction request message to a second transaction request message by the terminal adapter wherein the second transaction request message is encrypted; determining whether a primary communication path on a first network interface is operative according to previously determined information contained in a communication path status table, the communication path status table generated based at least in part on processing of previously received messages; and sending the second transaction request message on the primary communication path if the primary communication path is operative according to the determining step or sending the second transaction request on a secondary communication path if the primary communication path is not operative according to the determining step.