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I.570�:�Public/private ISDN interworking �

Recommendation I.570

In force components
Number
 Title Status
I.570 (01/18)
� 		Public/private ISDN interworking � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
I.570 (03/93)
� 		Public/private ISDN interworking � Superseded

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