Digital cellular telecommunications system (Phase 2) (GSM);Advice of Charge (AoC) supplementary services;Stage 1 (GSM 02.86) (Endorsed by Asociación Española de Normalización in September of 2022.)
| AENOR | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Name | UNE-ETS 300519 Ed2 |
