ETSI EN 300 646-1 V4.2.2 (1999-05)

Reference details

Reference

ETSI EN 300 646-1 V4.2.2 (1999-05)

Title

Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); Digital cellular telecommunications system (Phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface; Part 1: Protocol specification (GSM 09.12 version 4.2.2)

Organisation

ETSI

Publisher status in source

PublishedThis is the status recorded in the source, not a statement that this is the latest edition.

Source access

19 October 2026

Research and application

Begin with the official scope and the product configuration. The title identifies a subject; it does not establish every product, use condition or legal requirement covered by the publication.

Product research routes

• Radio and communications equipment

  Radio configurations, spectrum use and the interaction between hardware, software and network functions.

Questions for the evidence file

• Radio configuration matrix
• Antenna specification
• Test-mode equivalence
• Software version and change control

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Legal citation

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