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Q.400SerSup1 : Line signalling for Dc lines with System R2 interregister signalling  

Recommendation Q.400SerSup1

Superseded and Withdrawn components
Number
Title Status
Q.400SerSup1 (11/88)
 
Line signalling for Dc lines with System R2 interregister signalling   Superseded

 

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Updated : 2011.05.27