SIST ETS 300 365 E2:2005

SIST ETS 300 365 E2:2005 is the Slovenian adoption of ETS 300 365 Edition 2 from ETSI. It specifies the Private Integrated Services Network (PISN) call completion supplementary services, covering Call Completion on Busy Subscriber (SS-CCBS) and Call Completion on No Reply (SS-CCNR), and it is meant for use with various PISN basic services.

What does SIST ETS 300 365 E2:2005 specify?

SIST ETS 300 365 E2:2005 specifies the call completion supplementary services for PISN: SS-CCBS and SS-CCNR. In practice, it is the reference you use when a private network needs to describe how calls are completed after the called party is busy or does not answer.

The standard is focused on supplementary services rather than the full PISN architecture. The foreword places it in a series of standards for PISN services and signalling protocols, using Integrated Services Digital Network (ISDN) concepts and the Open Systems Interconnection (OSI) framework.

The document is an endorsed version of ISO/IEC 13866 (1995) with agreed ETSI modifications. The endorsement notice says modified passages are marked in the text, and clause 3 is the place where the normative references are set out.

What are the key requirements of SIST ETS 300 365 E2:2005?

SIST ETS 300 365 E2:2005 defines two named supplementary services: SS-CCBS and SS-CCNR. This matters because implementers and buyers can map network features to a clear service name instead of a vague “call back” function.

The standard applies these services to various basic services supported by PISN. That means the service behavior is not tied to one single bearer or call type, which is important when the same private network has to support different user services.

The document specifies the services through specification, functional models and information flows. In practice, this helps designers understand both what the service does and how the signalling exchanges are expected to behave between network entities.

The foreword shows that the series is built on ISDN concepts and aligned with the OSI framework. For an engineer, this is a clue that the service description fits a structured telecommunications signalling model rather than an ad hoc vendor feature.

Clause 3 adds the normative references that support the service specification:

• ETS 300 171 for control aspects of circuit mode basic services
• ETS 300 387 for the method for specifying basic and supplementary services
• ETS 300 475-1 for the reference configuration for PTN exchanges (PTNX)

These references matter because they connect the call completion services to the wider PISN/PTN specification framework.

What terms does SIST ETS 300 365 E2:2005 define?

Private Integrated Services Network (PISN) - the private network environment for which these supplementary services are specified.

Call Completion on Busy Subscriber (SS-CCBS) - the call completion service used when the called subscriber is busy.

Call Completion on No Reply (SS-CCNR) - the call completion service used when the called party does not reply.

Supplementary service - an added service that extends basic call handling in the network.

Integrated Services Digital Network (ISDN) - the concept family the PISN series uses as its basis.

Open Systems Interconnection (OSI) - the standards framework the series conforms to.

Private Telecommunication Network (PTN) - the broader private-network context named in the normative references.

Who uses SIST ETS 300 365 E2:2005?

SIST ETS 300 365 E2:2005 is used by telecommunications engineers, service specification teams, equipment vendors, and network planners working on PISN and PTN systems. It is also useful for test and conformance teams that need to check signalling behavior for busy and no-reply call completion.

Quality managers and technical buyers use it when they need to confirm that a private network product or service supports the expected call completion features and fits the PISN framework.

What changed in SIST ETS 300 365 E2:2005 from the previous edition?

The foreword says the first edition contained a standalone specification, while this second edition endorses ISO/IEC 13866, published after the first edition. The endorsement notice also records agreed modifications to the international text.

The updates named in the document include the addition of ETS 300 171, ETS 300 387 and ETS 300 475-1 as normative references, replacement of several references throughout ISO/IEC 13866, and replacement of the term “International Standard” with “ETS”.

Which standards are used with SIST ETS 300 365 E2:2005?

The main companion standard is ISO/IEC 13866 (1995), which is the international text endorsed by this ETS with agreed modifications. The document also uses these ETS standards:

• ETS 300 171 - control aspects of circuit mode basic services
• ETS 300 387 - method for the specification of basic and supplementary services
• ETS 300 475-1 - reference configuration for PTN exchanges (PTNX)

Together, these standards provide the service model, the specification method, and the network reference configuration used by SIST ETS 300 365 E2:2005.

What does the SIST ETS 300 365 E2:2005 document contain?

The front matter identifies the document as the Slovenian equivalent of ETS 300 365 Edition 2 and gives the telecom classification and publication history. The endorsement notice explains how modified text is marked, and the normative-references clause lists the linked ETS publications.

The document also includes a reference-replacement table showing how earlier references in ISO/IEC 13866 are adapted for ETS use. For readers, that means the standard is not just a service definition - it also tells them which related PISN standards to use alongside it.