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The document describes Call Waiting (CW) and Call Holding (HOLD) supplementary services, stage 1, at the digital cellular telecommunications system (phase 2).
| Author | DIN |
|---|---|
| Editor | DIN |
| Document type | Standard |
| Format | File |
| ICS | 33.070.50 : Global system for mobile communication (gsm)
|
| Number of pages | 1 |
| Replace | DIN ETS 300516 (1995-02) |
| Cross references | ETS 300516 (1996-05), IDT |
| Year | 2001 |
| Document history | DIN ETS 300516 (2001-04) |
| Country | Germany |
| Keyword | 300516 |