Imprint
The physical impression made from a Card on the Transaction Receipt which may be used to prove that the Card was present when the sale was made.
Imprinter
A device used by Merchants to make an Imprint on a Transaction Receipt.
Independent Service Organization (ISO)
In the payment systems industry, a third party organization that facilitates Merchant registration to accept charge or credit cards.
Interchange
The clearing and settlement system for Visa and Mastercard Credit Cards and Debit Cards where data is exchanged between the Servicer and the Issuer.
Interchange Fees
The amount paid by the Servicer to the Issuer on each Transaction. Interchange Fees vary according to the type of Merchant and the method of processing.
Internet Protocol (IP)
A data-oriented protocol used for communicating data across a packet-switched internetwork.
Issuer
A financial institution or other entity that issued a Credit Card to a Cardholder.
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