Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Inter-Exchange Signalling Protocol - Transit Counter Additional Network Feature

Designation Number:
CAN/CSA-ISO/IEC 15056:02
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
Reaffirmation
ICS code(s):
35.040.35
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This International Standard specifies the signaling protocol for the support of the Transit Counter additional network feature (ANF-TC) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a Private Integrated Services Network (PISN).

ANF-TC is a feature that limits the number of Transit PINXs that a call setup request may be routed through e.g., to protect the network against indefinite looping.

The Q reference point is defined in ISO/IEC 11579- 1.

Service specifications are produced in three stages and according to the method specified in CCITT Recommendation I. 130. This International Standard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 15055.

The signaling protocol for ANF-TC operates in association with the signaling protocols for basic circuit switched call control (as specified in ISO/IEC 11572) and call independent (connection oriented) signaling connections (as specified in ISOIIEC 11582).

Project need:

To review the standard for its 5-year review period

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