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| D.220�:�Charging and accounting principles to be applied to international circuit-mode demand bearer services provided over the integrated services digital network (ISDN)
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| In force components |
Number
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Title |
Status |
D.220 (03/91)
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Charging and accounting principles to be applied to international circuit-mode demand bearer services provided over the integrated services digital network (ISDN)
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In force
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| Superseded and Withdrawn components |
Number
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Title |
Status |
D.220 (11/88)
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Charging and accounting principles to be applied to international circuit mode demand bearer services provided over the Integrated Services Digital Network (ISDN)
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Superseded
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