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CSA ISO/IEC 21408

4th Edition, January 1, 2004

Complete Document

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Simple dialog supplementary service

Includes all amendments and changes through Reaffirmation Notice , 2017


Detail Summary

Active, Most Current

EN
Additional Comments:
SAME AS ISO/IEC 21408
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Product Details:

  • Revision: 4th Edition, January 1, 2004
  • Published Date: January 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 33
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This International Standard specifies the signalling protocol for the support of the Simple Dialog supplementary service (SS-SD) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN).

Supplementary service SD enables a user to communicate with another user or application by the exchange of keypad and display information transparently over a PISN.

The Q reference point is defined in ISO/IEC 11579-1.

Service specifications are produced in three stages and according to the method specified in ETS 300 387. This International Standard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 21407.

The signalling protocol for SS-SD operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.

This International Standard also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-SD and other supplementary services and ANFs.

This International Standard is applicable to PINXs which can interconnect to form a PISN.
CSA B51