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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

OENORM EN 300369-3 V 1.3.1
Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Explicit Call Transfer (ECT) supplementary service - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user

Edition 2002-08-01

Original language English

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

OENORM EN 300369-3 V 1.3.1 Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Explicit Call Transfer (ECT) supplementary service - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user

Want to learn more?

OENORM EN 300369-3 V 1.3.1
Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Explicit Call Transfer (ECT) supplementary service - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user