SSH ETS 300 121:1992

Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No. 7 for international ISDN interconnections (ISUP version 1)

Publication date: Jun 18, 2024

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Current stage: 60.60 Effective date: Jun 18, 2024

Originator: DPS

Owner: DPS/KT 10

Type: European Norm

ICS: 33.080

Languages: English

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Status: Published

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This ETS specifies ISUP version 1 for the international interface of CCITT Signalling System No.7. The text of CCITT Recommendation Q.767 (1991) is endorsed as the text of the ETS, without any modification, other than the addition of this scope. CCITT Recommendation Q.767 (1991) is intended to be applied between 2 international exchanges, or gateways, and supports the following services and supplementary services:

SSH ETS 300 121:1992

Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No. 7 for international ISDN interconnections (ISUP version 1)

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Adopted from ETS 300 121:1992 ed.1