Description: The present document describes the Supplementary Services belonging to the group Call Completion Supplementary
Services.
The general aspects, including definitions and recommended provision, of the description of Supplementary Services
are given in specification TS 22.004 [2].
The group of Call Completion Supplementary Services is divided into the following two Supplementary Services:
- Call waiting (clause 1)
- Call hold (clause 2).
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