Yes. When you enter credit card details in RMS the details are passed to and stored with the internet payment gateway provider. RMS will retain a "token" which relates to that credit card. Each time you wish to make a payment against that credit card account all you do is process the payment in RMS as usual. RMS will send the token to the payment gateway along with the details of the sale to facilitate the payment.
You need only pay the transaction fees for transactions processed via RMS. If you don't need to store the credit card details you can simply process the transaction as normal via your credit card terminal.
You will require an “ecommerce” merchant facility to use the tokenization process and the services of the payment gateway provider. Conditions can vary in different geographical regions. The merchant services department of your bank can assist with this matter.