ETSI - PRETS 300 546
European Digital Cellular Telecommunications System (Phase 2); Closed User Group (CUG) Supplementary Services - Stage 2 (GSM 03.85)
|Publication Date:||1 January 1993|
This specification gives the stage 2 description of the closed user group supplementary service.
The community of interest supplementary services defined are:
- closed user group (CUG) (section 1).