SIST EN 301 067-1:2001

SIST EN 301 067-1:2001 is the Slovenian adoption of a European telecommunications standard for Broadband Integrated Services Digital Network (B-ISDN) signalling. It specifies the Digital Subscriber Signalling System No. two (DSS2) protocol for negotiating connection characteristics during call/connection establishment, so the user side and the network can agree on traffic parameters at the user-network interface (UNI). It is written for equipment, network operators and conformance test teams that need B-ISDN access behavior defined in protocol terms.

What does SIST EN 301 067-1:2001 specify?

SIST EN 301 067-1:2001 specifies stage three for connection characteristics negotiation during the call/connection establishment phase in pan-European B-ISDN. In practice, that means the document focuses on the protocol, procedures and switching functions needed to support the service, not on higher-level service description.

The scope covers the TB reference point, or a coincident SB and TB reference point, where the service is provided via public B-ISDN access. It also covers the TB reference point when the service is provided through a private B-ISDN. The scope stays within the call/connection establishment phase and does not extend to additional protocol requirements for delivery over a non-B-ISDN telecommunications network.

The foreword places this part in a six-part family:

What are the key requirements of SIST EN 301 067-1:2001?

SIST EN 301 067-1:2001 defines how DSS2 is used to negotiate connection characteristics for B-ISDN calls. The key point is that the negotiation happens during establishment, before the connection is fully in service, so implementations must support the exchange at setup time.

A central requirement is the negotiation of cell rate traffic parameters. The standard ties this to basic call/bearer control and also to the first party of a point-to-multipoint call/connection. For implementers, this means the signaling stack must carry the agreed traffic descriptors in the setup procedure, not as an afterthought.

The standard depends on the basic point-to-point call/bearer connection protocol. That matters because connection-characteristics negotiation is not standalone - it builds on the base call control service defined elsewhere.

The conformance text in subclause 6.1 gives different expectations for different roles:

• the calling user conforms if it supports at least one of the two negotiation procedures;
• the network and the called user must support both negotiation procedures.

In practice, this means test and procurement teams should check role-by-role behavior, not assume one implementation profile fits all sides of the connection.

The endorsement notice also updates references throughout the text so that the negotiation rules are read together with the modified European versions of the related B-ISDN call-control and traffic-parameter standards.

What terms does SIST EN 301 067-1:2001 define?

SIST EN 301 067-1:2001 uses several B-ISDN and testing terms in a very specific way.

• Broadband Integrated Services Digital Network (B-ISDN) - the broadband ISDN environment in which this signaling applies.
• Digital Subscriber Signalling System No. two (DSS2) - the signaling system used to carry the negotiation.
• call/connection establishment phase - the setup stage where the connection characteristics are agreed.
• cell rate traffic parameters - the traffic descriptors negotiated for the connection.
• Protocol Implementation Conformance Statement (PICS) - a proforma used to state what an implementation supports.
• Test Suite Structure and Test Purposes (TSS&TP) - the structure and purpose of the test cases used to verify conformance.
• Abstract Test Suite (ATS) - the abstract tests derived from the TSS&TP.
• partial Protocol Implementation eXtra Information for Testing (PIXIT) - implementation-specific information needed to run the tests.

Who uses SIST EN 301 067-1:2001?

SIST EN 301 067-1:2001 is used by equipment manufacturers, B-ISDN network operators, and testers who need to implement or verify DSS2 signaling at the UNI. It is also relevant to private B-ISDN providers because the scope explicitly covers TB access in that environment.

Conformance laboratories use it together with the test-specification parts of the series. Buyers, integrators and quality managers can use it to check that a product supports connection characteristics negotiation during setup and matches the expected role of calling user, network or called user.

What changed in SIST EN 301 067-1:2001 from the previous edition?

SIST EN 301 067-1:2001 is a modified version of ITU-T Recommendation Q.2962 (1996). The endorsement notice says the underlying recommendation applies with modifications marked by sidebars, underlining and strike-out.

The stated changes are:

• a rewritten scope for this European Standard;
• a replaced opening paragraph in clause 2 on references;
• added references to EN 300 443-1, ETS 300 771-1, EN 301 068-1, ITU-T Recommendation I.112 and ITU-T Recommendation I.210;
• reference substitutions throughout the text for Q.2931, Q.2971 and Q.2961.1;
• additional conformance text in subclause 6.1 on ATM traffic descriptor negotiation.

Which standards are used with SIST EN 301 067-1:2001?

What does the SIST EN 301 067-1:2001 document contain?

SIST EN 301 067-1:2001 contains the protocol specification for connection characteristics negotiation, along with the endorsement notice that adapts Q.2962 into the European B-ISDN context. It also contains the reference-replacement table that updates citations to the modified European documents.

The foreword explains the six-part structure of the standard family, including the PICS, TSS&TP, ATS and partial PIXIT parts for user and network testing. For implementers, that makes the document a protocol basis for design and conformance work rather than a general service overview.