PD 6639-2001 PDF

Full title and description

STB PD 6639-2001 — national designation for PD 6639:2001 (PNO‑ISC specification number 005 C7), "Interconnect message transfer part (MTP)". The document is the 2001 published PD describing requirements for the message transfer part used for interconnect/signalling in telecommunication networks.

Abstract

This published document specifies the interconnect Message Transfer Part (MTP) used in telecommunication signalling (SS7-related interconnect). It defines the scope of inter-network message transfer, interoperability expectations and related conformance information for equipment and network interconnection. The original PD was issued in 2001 as a short technical specification (approx. 18 pages).

General information

• Status: Records show the original PD 6639:2001 (BSI/PNO‑ISC) was published in 2001; catalogues differ on current status—some listings mark PD 6639:2001 as withdrawn/cancelled, while commercial catalogues/resellers list an STB PD 6639-2001 edition as available. Verify current legal/applicability status with the national standards body.
• Publication date: 15 February 2001 (PD 6639:2001 published by BSI / PNO‑ISC specification).
• Publisher: Original PD publisher: BSI (PNO‑ISC specification PD 6639:2001). The STB designation indicates national adoption/registration under the Belarus STB system as distributed by local standards catalogues/resellers.
• ICS / categories: Telecommunications — ICS 33.020 and 33.040.35 (telephone networks, PSTN/PTN/PISN).
• Edition / version: 2001 (PD 6639:2001).
• Number of pages: Approximately 18 pages (published PD length).

Scope

Defines requirements and guidance for the Message Transfer Part used when interconnecting signalling systems between networks. The scope covers interconnect message formats, transfer behavior, and interoperability considerations for the networking layers responsible for carrying signalling messages between switching and signalling points in public and private telecommunication networks. The document is concise and intended as a specification for implementers and network interconnect planners.

Key topics and requirements

• Definition of the interconnect Message Transfer Part (MTP) functions and responsibilities.
• Interconnect message transfer behavior and timing considerations for reliable signalling transport.
• Interoperability and conformance requirements for equipment at interconnect points.
• Operational considerations for signalling transfer between Public Switched Telephone Networks and private/integrated networks.
• Reference to relevant telecommunication signalling classifications (SS7/MTP families and related ICS categories).

Typical use and users

Used by telecommunications network engineers, signalling system implementers, equipment manufacturers, system integrators, and regulators planning or validating interconnect between switching/signalling nodes. It is typically applied during equipment design, interconnect testing, and acceptance of signalling links between operators.

Related standards

Related documents commonly cited alongside PD 6639:2001 include ITU‑T recommendations and national/adopted standards for SS7 and signalling (MTP/Q.700‑series and associated recommendations), national STB/GS standards for telecommunication interconnect, and other BSI/PNO‑ISC technical specifications addressing signalling interconnect and interoperability. Users should consult ITU‑T and the national standards body for the authoritative list of referenced normative documents.

Keywords

MTP, Message Transfer Part, interconnect, signalling, SS7, PSTN, interconnection, PD 6639, STB, telecommunications, interoperability, conformance.

FAQ

Q: What is this standard?

A: STB PD 6639-2001 corresponds to PD 6639:2001 (PNO‑ISC specification number 005 C7) — a short technical specification defining the interconnect Message Transfer Part (MTP) for telecommunication signalling interconnection.

Q: What does it cover?

A: It covers the MTP functions relevant to interconnect between signalling points and networks: message transfer behavior, interoperability expectations, and conformance considerations for equipment and interconnect links. The PD is concise (about 18 pages) and aimed at implementers and interconnect planners.

Q: Who typically uses it?

A: Telecommunications operators, signalling engineers, equipment vendors, system integrators and regulatory/standards bodies involved in planning, implementing or certifying signalling interconnect.

Q: Is it current or superseded?

A: Source catalogues diverge: some records list PD 6639:2001 as withdrawn/cancelled, while commercial resellers list an STB PD 6639-2001 edition as available. Because of this discrepancy, you should confirm current legal status and applicability with the national standards authority (STB/Gosstandart or the equivalent) before relying on it for compliance or procurement.

Q: Is it part of a series?

A: PD 6639:2001 is a PNO‑ISC/BSI published document addressing a specific interconnect topic; it is normally used alongside other signalling standards and ITU‑T recommendations (MTP / Q.700‑series) rather than as a stand‑alone family. Check normative references within the PD and related national/adopted standards for the complete series context.

Q: What are the key keywords?

A: MTP, message transfer part, interconnect, signalling, SS7, PSTN, interoperability, PD 6639, STB.