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CSA ISO/IEC 15055:01 (R2019)

Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Transit Counter Additional Network Feature (Adopted ISO/IEC 15055:1997, first edition, 1997-05-15)

Standard Details

Scope This International Standard specifies the Transit Counter additional network feature (ANF-TC), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. ANF-TC is an additional network feature which limits the number of network exchanges that a call request may transit during call establishment, e.g. to protect the network against indefinite looping. There is no user involved in the provision or operation of ANF-TC. Additional network feature specifications are produced in three stages, according to the method described in CCITT Rec. I.130. This International Standard contains the stage 1 and stage 2 specifications of ANF-TC. The stage 1 specification (clause 6) specifies the general feature principles and capabilities. The stage 2 specification (clause 7) identifies the functional entities involved in the feature and the information flows between them.

General Information

Status : ACTIVE
Standard Type: Main
Document No: CSA ISO/IEC 15055:01 (R2019)
Document Year: 2001
Pages: 24
Adopted: Yes

Life Cycle

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ACTIVE
CSA ISO/IEC 15055:01 (R2019)
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