SIST EN 301 047 V1.1.1:2005

SIST EN 301 047 V1.1.1:2005 is the SIST adoption of ETSI EN 301 047 V1.1.1 for the Transit Counter additional network feature in a Private Integrated Services Network (PISN). It specifies the functional model and information flows for the Additional Network Feature Transit Counter (ANF-TC) for use with basic services supported by PISN, and it is based on ISO/IEC 15055 (1997) with agreed ETSI modifications.

What does SIST EN 301 047 V1.1.1:2005 specify?

SIST EN 301 047 V1.1.1:2005 specifies the Transit Counter additional network feature for PISN. In practice, it is the ETSI European Standard that tells readers how the feature fits into the PISN service and signalling framework.

The document is an endorsed version of ISO/IEC 15055 (1997). The shown material includes the foreword, the endorsement notice, clause 3 on normative references, and the document history. The foreword places the EN in the PISN series, which uses Integrated Services Digital Network (ISDN) concepts and conforms to the Open Systems Interconnection (OSI) framework.

What are the key requirements of SIST EN 301 047 V1.1.1:2005?

SIST EN 301 047 V1.1.1:2005 is not a standalone reworking of the whole topic. Its key technical effect is to adopt ISO/IEC 15055 (1997) as an EN and to align its references and terminology with ETSI documents.

Clause 3 updates the normative references

Clause 3 adds five ETSI references to the end of the normative reference list:

• ETS 300 256 - Diversion supplementary services
• ETS 300 258 - Path replacement additional network feature
• ETS 300 260 - Call transfer supplementary service
• ETS 300 365 - Call completion supplementary services
• ETS 300 387 - Private Telecommunication Network (PTN) method for the specification of basic and supplementary services

This matters because ANF-TC is defined in relation to other PISN service documents. Anyone implementing or checking the feature must use the linked ETSI standards alongside this EN.

The document replaces cited references throughout the text

Throughout ISO/IEC 15055, the EN replaces several references with ETSI equivalents:

• ISO/IEC 13863 becomes ETS 300 258
• ISO/IEC 13865 becomes ETS 300 260
• ISO/IEC 13866 becomes ETS 300 365
• ISO/IEC 13872 becomes ETS 300 256
• ITU-T Recommendation I.130 becomes ETS 300 387

In practice, this keeps the feature description consistent with the ETSI PISN series. Readers should follow the ETSI document numbers when cross-checking related service behaviour.

The status of the document is changed to an EN

The text replaces the term “International Standard” with “EN” throughout ISO/IEC 15055. That matters for procurement, conformity work, and document control because the text is being used as a European Standard rather than only as an international publication.

The feature sits inside the PISN service framework

The foreword says the EN is part of a series defining services and signalling protocols for PISN. That tells implementers where the Transit Counter feature belongs: within private network telephony services built on ISDN concepts and an OSI-based structure.

What terms does SIST EN 301 047 V1.1.1:2005 define?

• Private Integrated Services Network (PISN) - a private network environment that uses integrated services concepts for telephony and related services.
• Additional Network Feature Transit Counter (ANF-TC) - the additional network feature specified by this EN.
• Integrated Services Digital Network (ISDN) - the concept base used by the PISN series, as stated in the foreword.
• Open Systems Interconnection (OSI) - the standards framework that the series conforms to.
• European Standard (EN) - the ETSI standard form used for this document.
• European Telecommunications Standards Institute (ETSI) - the standards body that approved the EN.

Who uses SIST EN 301 047 V1.1.1:2005?

SIST EN 301 047 V1.1.1:2005 is used by people working on PISN services and signalling protocols. That includes telecom engineers, standards implementers, network equipment suppliers, and test or quality teams checking whether a PISN feature aligns with the ETSI reference set.

It is also useful for buyers and technical specifiers who need to identify the correct standards for a private network feature. The standard helps them trace ANF-TC to the related diversion, path replacement, call transfer, call completion, and PTN method documents.

What changed in SIST EN 301 047 V1.1.1:2005 from the previous edition?

SIST EN 301 047 V1.1.1:2005 endorses ISO/IEC 15055 (1997) as an EN with agreed modifications. The stated changes are the added normative references, the replacement of selected ISO/IEC and ITU-T references with ETSI references, and the substitution of “International Standard” with “EN” throughout the text.

Which standards are used with SIST EN 301 047 V1.1.1:2005?

SIST EN 301 047 V1.1.1:2005 uses these standards as its named companions:

• ISO/IEC 15055 (1997) - the international base text that is endorsed as this EN
• ETS 300 256 - diversion supplementary services
• ETS 300 258 - path replacement additional network feature
• ETS 300 260 - call transfer supplementary service
• ETS 300 365 - call completion supplementary services
• ETS 300 387 - PTN method for specifying basic and supplementary services

These references supply the related PISN service definitions that ANF-TC relies on.

What does the SIST EN 301 047 V1.1.1:2005 document contain?

The document contains a foreword that places the EN in the PISN standards series and identifies its relationship to ISDN and OSI. It also contains an endorsement notice that states the EN approval of ISO/IEC 15055 (1997) with agreed modifications.

Clause 3 updates the normative references, and the endorsement notice includes a reference replacement table for the affected ISO/IEC and ITU-T documents. The end of the document includes a short history block with the approval and publication record for V1.1.1.