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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 300958 V 7.0.1
Digital cellular telecommunications system (Phase 2+) - Explicit Call Transfer (ECT) supplementary service - Stage 3 (GSM 04.91 version 7.0.1 Release 1998)

Edition 2000-04-01

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 300958 V 7.0.1 Digital cellular telecommunications system (Phase 2+) - Explicit Call Transfer (ECT) supplementary service - Stage 3 (GSM 04.91 version 7.0.1 Release 1998)

Want to learn more?

OENORM EN 300958 V 7.0.1
Digital cellular telecommunications system (Phase 2+) - Explicit Call Transfer (ECT) supplementary service - Stage 3 (GSM 04.91 version 7.0.1 Release 1998)