Tech-invite3GPPspecsGlossariesIETFRFCsGroupsSIPABNFs   Ti+SearchTech-invite World Map Symbol

Top   in Index   Prev   Next

TS 23.172 (CT3)
Circuit Switched (CS) multimedia service UDI/RDI fallback and service modification

3GPP‑Page   ETSI‑search   full‑ToC    
V15.0.0 (PDF)  2018/06  61 p.
V14.0.0  2017/03  61 p.
V13.0.0  2015/12  61 p.
V12.0.0  2014/10  61 p.
V11.0.0  2012/09  61 p.
V10.0.1  2011/04  61 p.
V9.0.0  2009/12  61 p.
V8.0.0  2008/12  61 p.
V7.0.0  2007/06  61 p.
V6.4.0  2006/03  61 p.
V5.6.0  2005/06  44 p.


Rapporteur:  Mrs. Biondic, Nevenka

This service is available to UDI/RDI multimedia calls and allows users to achieve successful call establishment when end to end circuit-switched (CS) multimedia is not possible (fallback to speech) or when signalling of the feature is not possible in the network (fallback to preferred service or speech). Furthermore, it allows the users to swap between a multimedia service and basic speech during an established call.