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ETSI TS 124 605
M00002818
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ETSI TS 124 605 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.605 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 05/01/2017
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Full Description
The present document specifies the stage three Protocol Description of the Conference (CONF) service based on stage one and two of the ISDN CONF supplementary service. It provides the protocol details in the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the Session Description Protocol (SDP).The present document specifies centralized conferencing, using a conference focus, distributed conferencing is out of scope.
The present document does not cover the cases of:
a) cascading conference services; andThe present document is applicable to User Equipment (UE) and Application Servers (AS) which are intended to support the CONF supplementary service.
b) the support of the PSTN/ISDN conference service hosted in the PSTN.