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ANSI C12.21 PDF download
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Protocol Specification for Telephone Modem Communication
| Published by | Publication Date | Number of Pages |
| ANSI | 05/02/2006 | 77 |
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ANSI C12.21 – Protocol Specification for Telephone Modem Communication
ANSI C12.21-2006 (R2016) details the criteria required for communications between a C12.21 device and a C12.21 client via a modem connected to the switched telephone network. The C12.21 client could be a laptop or portable computer, a master station system or another electronic communications device.
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