CSA - CAN/CSA-ISO/IEC 15055-01
Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Transit Counter Additional Network Feature
| Organization: | CSA |
| Publication Date: | 1 January 2001 |
| Status: | inactive |
| Page Count: | 24 |
| ICS Code (Networking): | 35.110 |
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 ISWIEC 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. 1.130. 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.
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