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
Change history | |||||||
Date | TSG # | TSG Doc. | CR | Rev | Subject/Comment | Old | New |
2005-08 | Publication as ETSI TS 183 010 | 1.1.1 | |||||
2006-04 | Publication as ETSI TS 183 010 | 1.2.1 | |||||
2007-04 | Publication as ETSI TS 183 010 | 1.2.2 | |||||
2007-12 | Conversion to 3GPP TS 24.410 | 1.2.3 | |||||
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 | ||
2008-03 | Based on the decision in CT#39 version 8.0.0 was created by MCC | 7.0.0 | 8.0.0 | ||||
2012-12 | CT#58 | CP-120778 | 0001 | 1 | Emergency call HOLD suppression | 8.0.0 | 8.1.0 |