Essential requirements for terminal equipment intended for connection to digital interfaces of the PSTN using Digital Access Signalling System No.2 (DASS 2) Ingestion-build-103253 transition periods
$116.00
Description
transition periods
This European Standard supersedes BS EN 50081-2:1994 which is withdrawn
a selection of needed security services and a description of a common set of application independent security mechanisms
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Essential requirements for terminal equipment intended for connection to digital interfaces of the PSTN using Digital Access Signalling System No.2 (DASS 2) Ingestion-build-103253 transition periods
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