Integrated Services Digital Network (ISDN);Circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for speech information transfer;Service description (Endorsed by Asociación Española de Normalización in March of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300109 Ed1 |
