A.2 RESUME Communication
24.4103GPPCommunication HOLD (HOLD) PSTN/ISDN simulation servicesNGN Signalling Control ProtocolProtocol specificationRelease 8TISPANTS
A.2.1 RESUME communication without announcement
The following diagram shows how a communication session is resumed using a reINVITE request, note that the same can be achieved by sending an UPDATE request.
Figure A.2.1.1: RESUME communication without announcement to the held user
1. UE-A sends an INVITE to UE-B to resume the session. Resume is done by changing the SDP attribute:
- "a=sendrecv", if the stream was previously a recvonly media stream, or the attribute may be omitted, since sendrecv is the default;
- "a=recvonly", if the stream was previously an inactive media stream.
A.2.2 RESUME communication with announcement
The following diagram shows how a communication session is resumed using a reINVITE request, note that the same can be achieved by sending an UPDATE request.
Figure A.2.2.1: RESUME communication with announcement to the held user
1. UE-A sends an INVITE to UE-B to resume the session. Resume is done by changing the SDP attribute:
- "a=sendrecv", if the stream was previously a recvonly media stream, or the attribute may be omitted, since sendrecv is the default;
- "a=recvonly", if the stream was previously an inactive media stream.
Annex B (informative):
Change history
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Change history |
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Date |
TSG # |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
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2005-08 |
Publication as ETSI TS 183 010 |
1.1.1 |
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2006-04 |
Publication as ETSI TS 183 010 |
1.2.1 |
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2007-04 |
Publication as ETSI TS 183 010 |
1.2.2 |
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2007-12 |
Conversion to 3GPP TS 24.410 |
1.2.3 |
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2008-03 |
CT#39 |
CP-080080 |
Version 1.2.3 approved in CT#39 and version 7.0.0 created by MCC |
1.2.3 |
7.0.0 |
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2008-03 |
Based on the decision in CT#39 version 8.0.0 was created by MCC |
7.0.0 |
8.0.0 |
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2012-12 |
CT#58 |
CP-120778 |
0001 |
1 |
Emergency call HOLD suppression |
8.0.0 |
8.1.0 |