ETSI EN 300 452

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ETSI EN 300 452 English PDF Access and Terminals (AT); Special quality voice bandwidth 4-wire analogue leased line (A4S); Connection characteristics and network interface presentation

standard published 07/01/2001 by European Telecommunications Standards Institute

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Specification of the public network side of the interface and the performance of the leased line service, including test procedures for compliance Revision of ETS 300 452 to improve the safety related text following a liaison from TC Safety.