Private Integrated Services Network (PISN)
- Specification, Functional Model and Information Flows - Transit
Counter Additional Network Feature (ANF-TCSD)
2nd edition (June 1997)
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 ETS 300 387. This 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
The following file can be freely downloaded:
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 15055.
The previous replaced "historical" edition of this Ecma Standard is available here.