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ETSI TBR 004/A1
- Amendment 1 to - Integrated Services Digital Network (ISDN); Attachment requirements for terminal equipment to connect to an ISDN using ISDN primary rate access
- Amendment by European Telecommunications Standards Institute, 12/01/1997
- Publisher: ETSI
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Revision of known shortcomings in the TTCN at layers 1, 2 and 3. Completion of the TTCN DIS to IS conversion. New tests will only be de veloped at the specific request of the ACTE/NTRAC group and then only where it can be shown that the test is technically possible and capabl e of being implemented in TTCN within the timescale of the work item.