Yes, that is one of the purposes of these machines.
Unfortunately, POS machines are only for point of sale, and as such don't handle online transactions.
Most retailers buy POS machines, but there are a select few who do lease. It all comes down to whether you want to rent or own.
All POS machines are required to have no minumum balances, per VISA, Mastercard and AMEX's merchant agreements.
Most POS machines these days can still use phone connections but also accept DSL.
The purpose of a complete POS system is to have complete inventory management in a chain of stores. As sales are made and inventory decreases, an order is immediately made for additional product to be delivered to the store.
Point of sale system (POS system)
It's very easy to configure POS machines for frontline, heavy use.
It's a very good idea to have two machines. Visit any retailer and you'll see very few only have one POS machine.
There are inventory control systems that are available for purchase. The system bills the product and updates your inventory at the same time. Walmart uses it. Check out the HP link below.
All POS machines will be roughly the same in this area, so it's largely a matter of preference.
It really depends on your card merchants. Call VISA, MasterCard or AMEX to see which POS machines they suggest.
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