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I.S. EN 300 058-1:2001
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INTEGRATED SERVICES DIGITAL NETWORK (ISDN); CALL WAITING (CW) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - PART 1: PROTOCOL SPECIFICATION
12-01-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Specifies update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.
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