ETSI ETS 300 403-4
- Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 4: Test Suite Structure and Test Purposes (TSS&TP) specification for the u
- standard by European Telecommunications Standards Institute, 01/01/1997
- Publisher: ETSI
$34.00$68.00
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