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Q.709 : Hypothetical signalling reference connection

Recommendation Q.709

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Superseded and Withdrawn components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Specifications of Signalling System No. 7 - Hypothetical signalling reference connection   Superseded


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Updated : 2009/11/13