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I.257.1 : Additional information transfer supplementary services : User-to-User Signalling (UUS)

Recommendation I.257.1

In force components
Number
Title Status
I.257.1 (10/95)
 
Additional information transfer supplementary services : User-to-User Signalling (UUS)   In force
 
 
Superseded and Withdrawn components
Number
Title Status
I.257.1 (11/88)
 
Additional information transfer supplementary services : User-to-User Signalling (UUS)   Superseded
I.257.1 (08/92)
 
Additional information transfer supplementary services : User-to-User Signalling   Superseded

 

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Updated : 2011.03.14