PRETS 300 207 : AUG 92
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DIVERSION SUPPLEMENTARY SERVICES - DIGITAL SUBSCRIBER SIGNALLING NO. ONE (DSS1) PROTOCOL
23-07-2013
12-01-2013
Specifies the stage three of the Diversion supplementary services for the pan-European Integrated Services Digital Network as provided by European public telecommunications operators at the T reference point or coincident S and T reference point by means of the Digital Subscriber Signalling System No. one (DSS1). Does not specify the additional protocol requirements where the service is provided to the user via a telecommunications network that is not an ISDN.
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