Have you thought about using wireless credit card processing? Yes, there are some costs, but isn’t it better to secure a sale quickly than to lose it entirely?
Besides, if you have a couple of wireless systems, you might not even need to have a land line phone dedicated to your merchant account. The cost will just be on the wireless lines instead.
Not convinced? Try comparing the cost of a $100 sale minus the few percent that the provider will charge you versus not getting the sale at all.
There are so many times when you could really use the convenience and security of a wireless system. Delivering an order, selling items at a trade show or sporting event, or just after a sales presentation. “Strike while the iron is hot” as the saying goes.