ETSI - TS 123 083
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2
|Publication Date:||1 July 2020|
The present document 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) (clause 1);
- Call hold (HOLD) (clause 2).