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Q.709�:�Hypothetical signalling reference connection �

Recommendation Q.709

In force components
Number
 Title Status
Q.709 (03/93)
� 		Hypothetical signalling reference connection � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
Q.709 (11/88)
� 		Specifications of Signalling System No. 7 - Hypothetical signalling reference connection � Superseded

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