A point-of-sale (POS) system utilizing telephony as a primary communication method involves using a telephone line to transmit transaction data. In this setup, a payment terminal connects to a traditional phone line to authorize credit card payments and process sales. For example, a small retail establishment might use this system for its simplicity and low initial cost.
This method offers relatively straightforward implementation and can be beneficial for businesses with limited technological infrastructure. Historically, it was a prevalent method for electronic payment processing before the widespread adoption of internet-based POS systems. The appeal lies in its established infrastructure and ease of use in areas with reliable telephone service.
