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Q.780 : Signalling System No. 7 test specification - General description

Recommendation Q.780

In force components
Number
 Title Status
Q.780 (10/95)
  		Signalling System No. 7 test specification - General description   In force
 
 
Superseded and Withdrawn components
Number
 Title Status
Q.780 (11/88)
  		Signalling System No. 7 test specification - General description   Superseded
Q.780 (03/93)
  		Signalling System No. 7 test specification general description   Superseded

 

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Updated : 2014-05-15