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| I.210�:�Principles of telecommunication services supported by an ISDN and the means to describe them
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| In force components |
Number
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Title |
Status |
I.210 (03/93)
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Principles of telecommunication services supported by an ISDN and the means to describe them
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In force
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| Superseded and Withdrawn components |
Number
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Title |
Status |
I.210 (11/88)
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Principles of telecommunication services supported by an ISDN and the means to describe them
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Superseded
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