1 Scope
2
References
3
Definitions
4
Abbreviations
5
Information flows used in this Supplement
6
Overview of call control level peer-to-peer functional entity actions
7
Call establishment
7.1 Two-party call establishment
7.2 Establishment of a call with three or more parties
8
Addition of one or more parties to a call
8.1 Addition of one party to a call
8.2 Addition of two or more parties to a call
9
Release of a party from an existing call
9.1 General rules for release of a party
9.2 Release of a party from an existing two-party call
9.2.1 Release of a party by the call owner –
Clear call option
9.2.2
Release of a party by the call owner – Retain call option
9.3 Release of a party from an existing multiparty call
9.3.1 Release of a party from an existing
multiparty call requested by the call owner
9.3.2 Release
of a party from an existing multiparty call requested by the party owner
10 Release of a call
10.1 General rules for releasing a call
10.2 Release of a call requested by the call owner
10.2.1 Release of a single-party call requested
by the call owner
10.2.2 Release of a multiparty call requested by
the call owner
10.3 Release of a call requested by a non-call owner
10.3.1 Release of a two-party call requested by
a non-call owner
10.3.2 Release of a multiparty call requested by
a non-call owner