| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YDN 006-1996 | English | 319 |
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Technical Requirements for Centralized Management System of Automatic Telephone Charging Equipment (Tentative Specifications)
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YDN 006-1996
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YDN 006-1996
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