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External COM Port Phone Bill Calculator:
Our external COM port phone bill calculator is used to manage many phone lines at the same time. Working with a computer (PC), it connects via a COM port. Capacity: 1) JT08ccb: 8 lines maximum 2) JT16ccb: 16 lines maximum Features and specifications: 1) Requires computer with available COM port 2) Conforms to national design standards 3) Multiple rate types include: international, national, local call, special call, toll-free call, and forbid call 4) Can charge by the polarity change, delay to charge or manual charge 5) Automatically identify the dialed number with a timer error of less than 1 second 6) Automatically adds up the charge of all bills 7) Internal modem supports centralized management 8) Excellent built-in surge protection, excellent stabilization Operational parameters: 1) Avoid rain, dust, direct sunlight 2) Temperature: -20 |
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