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Q.769.1�:�Signalling system No. 7 - ISDN user part enhancements for the support of number portability �

Recommendation Q.769.1

In force components
Number
 Title Status
Q.769.1 (12/99)
� 		Signalling system No. 7 - ISDN user part enhancements for the support of number portability � In force

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