| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 7625-1987 | English | 249 |
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Days<=3
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2400/1200 bits per second modem standardized for use in the general switched telephone network
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GB/T 7625-1987
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GB/T 7625-1987
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