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D.212�:�Charging and accounting principles for the use of Signalling System No. 7 �

Recommendation D.212

In force components
Number
 Title Status
D.212 (07/24)
� 		Charging and accounting principles for the use of Signalling System No. 7 � In force
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�
Superseded and Withdrawn components
Number
 Title Status
D.212 (10/96)
� 		Charging and accounting principles for the use of Signalling System No. 7 � Superseded

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