Integrated Services Digital Network (ISDN);ISDN Packet Mode Bearer Service (PMBS);ISDN Virtual Call (VC) and Permanent Virtual Circuit (PVC) bearer services provided by the D-channel of the user access - basic and primary rate (Endorsed by Asociación Española de Normalización in February of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300049 Ed2 |
