PSP (Payment Service Provider) a offers shops online services for accepting electronic payments by a variety of payment methods including credit card, bank-based payments such as direct debit, bank transfer, and real-time bank transfer based on online banking. Typically, they use a software as a service model and form a single payment gateway for their clients (merchants) to multiple payment methods. Typically, a PSP can connect to multiple acquiring banks, card, and payment networks. In many cases, the PSP will fully manage these technical connections, relationships with the external network, and bank accounts. This makes the merchant less dependent on financial institutions and free from the task of establishing these connections directly, especially when operating internationally. Furthermore, by negotiating bulk deals they can often offer cheaper fees. Furthermore, a full-service PSP can offer risk management services for card and bank based payments, transaction payment matching, reporting, fund remittance and fraud protection in addition to multi-currency functionality and services. Some PSPs provide services to process other next generation methods (payment systems) including cash payments, wallets, prepaid cards or vouchers, and even paper or e-check processing. A PSP is thus a much broader term than a payment gateway which is how the payment card industry refers to them. PSP fees are typically levied in one of two ways: as a percentage of each transaction or a fixed cost per transaction.
A payment processor is a company (often a third party) appointed by a merchant to handle transactions from various channels such as credit cards and debit cards for merchant acquiring banks.They are usually broken down into two types: front-end and back-end. Front-end processors have connections to various card associations and supply authorization and settlement services to the merchant banks merchants. Back-end processors accept settlements from front-end processors and, via The Federal Reserve Bank for example, move the money from the issuing bank to the merchant bank. In an operation that will usually take a few seconds, the payment processor will both check the details received by forwarding them to the respective card's issuing bank or card association for verification, and also carry out a series of anti-fraud measures against the transaction. Additional parameters, including the card's country of issue and its previous payment history, are also used to gauge the probability of the transaction being approved. Once the payment processor has received confirmation that the credit card details have been verified, the information will be relayed back via the payment gateway to the merchant, who will then complete the payment transaction. If verification is denied by the card association, the payment processor will relay the information to the merchant, who will then decline the transaction.
Wallet Payement (WP) or Digital Wallet (DW) . A digital wallet refers to an electronic device that allows an individual to make electronic transactions. This can include purchasing items on-line with a computer or using a smartphone to purchase something at a store. An individual's bank account can also be linked to the digital wallet. They might also have their driver's license, health card, loyalty card(s) and other ID documents stored on the phone. The credentials can be passed to a merchant's terminal wirelessly via near field communication (NFC). Increasingly, digital wallets are being made not just for basic financial transactions but to also authenticate the holder's credentials. For example, a digital wallet could verify the age of the buyer to the store while purchasing alcohol. The system has already gained popularity in Japan, where digital wallets are known as wallet mobiles.
Processing by Credit Card - Debit Card - Wire Transfert - Gateway Payment - Wallet Payment - Mobile Billing - IPS Billing - Micropayment SMS and Audiotel