| 摘要 |
A merchant's point of sale terminal system for processing credit and debit and other electronic purchases for a vision impaired purchaser, incorporating a removable or auxiliary handset (20) with a manual keypad (21) disposed on an arched surface between siderails (24), the keypad (21) being a ten data key array in familiar three by three over one pattern but displaced from any function keys. The system is further equipped and configured to provide an automated, contemporaneous, audio call out of at least the monetary total of the transaction being processed.
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