Integrated Services Digital Network (ISDN);Completion of Calls on No Reply (CCNR) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user (Endorsed by Asociación Española de Normalización in September of 2021.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-EN 301065-3 V1.1.3 |
