ETSI - PRETS 300 544
European Digital Cellular Telecommunications System (Phase 2); Call Waiting (CW) and Call Hold (HOLD) Supplementary Services - Stage 2 (GSM 03.83)
|Publication Date:||1 January 1993|
This specification gives the stage 2 description of the call completion supplementary services.
The group of call completion supplementary services is divided into the following two supplementary services:
- Call waiting (CW) (section 1);
- Call hold (HOLD) (section 2).