Digital cellular telecommunications system (Phase 2) (GSM);Closed User Group (CUG) supplementary services;Stage 3 (GSM 04.85) (Endorsed by Asociación Española de Normalización in October of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300569 Ed2 |