| Considerations relating to transmission characteristics for analogue handset telephones |
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| Citation: |
https://handle.itu.int/11.1002/1000/20 |
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| Approval date: |
1988-11-25 |
| Approval process: | WTSA |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 12 |
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Further details: |
Patent statement(s)
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