CAN/CSA-ISO/IEC 21407:04 (R2017)

Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Simple Dialog Supplementary Service
This National Standard of Canada is equivalent to International Standard ISO/IEC 21407:2001 (first edition, 2001-08-15). 1 Scope This International Standard specifies the supplementary service Simple Dialog (SS-SD), which is applicable to various basic services supported by Private Integrated Services Networks (PISNs). Basic services are specified in ISO/IEC 11574. 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. Service specifications are produced in three stages, according to the method described in ETS 300 387. This International Standard contains the stage 1 and stage 2 specifications of SS-SD. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) specifies the functional entities involved in the supplementary service and the information flows between them.
SDO:
CSA
Language:
English
ICS Codes:
33.040.35
Status:
Standard
Publish date:
2003-12-31
Standard Number:
CAN/CSA-ISO/IEC 21407:04 (R2017)