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 user (Endorsed by Asociación Española de Normalización in August of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300403-4 Ed1 |
