EN 300 064-1 : 1.3.4

Intellectual Property Rights
Foreword
1 Scope
2 Normative references
3 Definitions
4 Abbreviations
5 Description
6 Operational requirements
   6.1 Provision and withdrawal
   6.2 Requirements on the originating network side
   6.3 Requirements on the destination network side
7 Coding requirements
8 State definitions
9 Signalling procedures at the coincident S and T
   reference point
10 Procedures for interworking with private ISDNs
   10.1 Activation, deactivation and registration
   10.2 Delivery of the DDI number
11 Interactions with other networks
12 Interactions with other supplementary services
13 Parameter values (timers)
14 Dynamic description (SDL diagrams)
Annex A (informative): Signalling flows
Annex B (informative): Changes with respect to the
        previous ETS 300 064-1
History

Describes the stage three of the Direct Dialling In (DDI) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators at the T reference point or coincident S and T reference point (as defined in ITU-T Recommendation I.411 [8] by means of the Digital Subscriber Signalling System No. one (DSS1) protocol.