Integrated Services Digital Network (ISDN);Conference call, add-on (CONF) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsed by Asociación Española de Normalización in April of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300185-5 Ed1 |
