Merchant Link, which has now become a part of the Shift4 solution, is a cloud based payment gateway and data security solution. With over 500,000 hotel, restaurant, and retail locations, the solution is built with the hospitality industry in mind. Fully PCI compliant, Merchant Link removes liability from their customers with deep integrations with the leading POS systems on the market. Combined with Book4Time, you can process credit cards online or on property with EMV certification, store cards securely on file, and receive instant feedback on successful or failed payments.