Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Transit Counter Additional Network Feature

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
CAN/CSA-ISO/IEC 15055-01 (R2014)
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
Reaffirmation
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

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.

Project need:

To review the Standard within the required 5 year period.

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