Some of the items we listed could not easily be found on the digital fee gateways' websites.

Unfortunately some of the items we listed could not easily be found on the digital fee gateways' websites.  We tried to get in touch with them but we did not receive a response by the time of this post. 
You can see from a quick glance that fee credit card processing gateway wise Quantum Gateway appears to be the best buy as it has no charges.  As a starting point it should be noted that all of these gateways have comparable integration with billing systems and shopping carts, detailed reports and processing controls. The differences are in the type of fraud prevention and detection that they offer.  Another example if ThreatMetrix (Fighting Fraud with ThreatMetrix).  This services is compatible with most digital fee gateways and in the event you switch to another gateway, your settings can easily be transferred.

Years ago, we wrote an article Digital Fee Gateways Compared.  We still stand by our professional opinion that no one can write an article comparing the digital fee gateways unless those gateways are being used.  And when that article was written, I hate to admit it, but we were still using the LinkPoint (aka First Data Global Gateway) as an digital fee gateway.  We stood by them when First Data decided to re-build the gateway from the bottom to the top.  We were promised more choices to help reduce chargebacks - that did not happen.  We stood by them when they renamed LinkPoint to the First Data Global Gateway, once again being promised choices to help reduce chargebacks.  And of course, that promise was broken as well.
Fortunately, we came to our senses and found a better digital fee gateway named the Quantum Gateway.  This gateway was built with the Internet merchant in mind.  Preventing chargebacks was on the top of the list.  Chargebacks cost everyone money, thus increasing charges to the merchant account providers, the merchants, and finally the consumers.
Quantum Gateway Unlike most other digital fee gateways that charge a monthly fee or maybe even a transaction fee, the Quantum Gateway does not.  That's right, you read it correctly, they do not charge a monthly fee or a transaction fee.  They off a virtual terminal, batch uploading, virtual checks, and a virtual terminal accessible via a WAP enabled phone.

Unlike most other digital fee gateways, the Quantum Gateway does not charge the merchant for storing credit score card numbers.  Storing credit score card numbers is risky on the Internet, but in the event you use the Quantum Gateway to help store the credit score card numbers, this helps to take away a lot of that risk.  You are able to also use the Quantum Vault for recurring billing. 
Besides Address Verification Services (AVS), the Quantum Gateway has also added:
Dial Verify - a system that automatically will call the customer during the checkout process, thus verifying the phone number.  You are able to use default recordings or upload your own recordings.  In the event you need a professional voice talent, we recommend Lynn Brooks. MaxMind - a scoring system to help you determine if the transaction needs to be vetted more, approved, or declined. Verified by Visa / MasterCard Secure Code - this system will help prevent some chargebacks based on the merchant's location, consumer location, and card association

We made the change to the Quantum Gateway and we suggest you do the same.  They offer a test account which means you can implement it before signing up as an Internet merchant.  We say this because we noticed about eighteen months ago, the LinkPoint gateway seemed to stop offering free test accounts, even though they still say it on their website.  We have made numerous attempts at getting a free test account from the LinkPoint gateway, Authorize.net / Cybersource, and the Quantum Gateway.  The Quantum Gateway was the quickest when we applied for a test account, with Authorize.net coming in a close second.  However, we never did receive a test store from the LinkPoint gateway.

First Data is laying off employees while the Quantum Gateway is growing.  So, what are you currently waiting for?  Examine out the Quantum Gateway and get a merchant account today.

Relying on Recurring Billing Friday, April 17, 2009 A recurring monthly fee from clients can be a great source of income.  You will find thousands of companies that could thrive on using an digital fee gateway to do recurring billing for them.  The digital fee gateway would store the consumer's credit score card number for you and complete the transaction at a set interval that you determine.

The LinkPoint Gateway (also known as YourPay, but now known as the First Data Global Gateway) has their feature that is called periodic billing.  Via their API, you are able to set up a recurring monthly fee.  By doing this, you do not need to worry about storing credit merchant processing score card numbers and a possible breach.  You also save the Address Verification Services (AVS) fee on each recurring transaction, since the gateway has performed the services already.

The LinkPoint Gateway however is somewhat limiting on its features.  For example, if the recurring transaction fails the next month, you're sent an email.  Unfortunately, it's then up for you to either get in touch with the consumer to get a new credit score card and possibly suspend the consumer's account.  However, you are able to also set up the recurring transaction to try for a couple of days - just in case the consumer was close to his limit and a fee was received to the card association.  Keep in mind though, each transaction will cost - a transaction fee, and this is usually $.15 - $.30, depending on your monthly volume and transactions.  On the plus side, the periodic billing feature is free and is accessible to all merchants that use the LinkPoint / First Data Global Gateway.

Reference:
E-Commerce is growing past easy B2C and B2B buying portals

Ecommerce Strategy Section