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ECMA-213

Private Integrated Services Network (PISN) - Specification, functional model and information flows - Recall supplementary service (RESD)

3rd edition, December 2001

This Standard specifies supplementary service Recall (SS-RE), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ECMA-142.

SS-RE is a supplementary service which provides for the redirection of a call transferred by the served user back to the served user if the call is unanswered. SS-RE is only applicable after transfer by join, not after transfer by rerouteing.

Service specifications are produced in three stages, according to the method described in ETS 300 387. This Standard contains the stage 1 and stage 2 specifications of SS-RE. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) identifies the functional entities involved in the supplementary service and the information flows between them.

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Classification

CategoryData communication – PISN

SubcategoryPISN

Technical CommitteeTC32

ISO/IEC number15051

ETSI numberEN 301 257

Archives

  • ECMA-213, 1st edition, December 1994Download
  • ECMA-213, 2nd edition, June 1997Download