NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN ETS 300137 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ETS 300136 | 1992-03 | Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; service description More |
| ITU-T I.130 | 1988-11 | Method for the characterization of telecommunication services supported by an ISDN and network capabilities of an ISDN More |
