Tech-invite   World Map
3GPPspecs     Glossaries     T+       IETF     RFCs     Groups     SIP     ABNFs
Top        in Index        Prev        Next

TS 22.053 (SA4)
TFO – Tandem Free Operation Service description – Stage 1

ToC      3GPP‑Page      ETSI‑search      Help
V14.0.0 (PDF)    2017/03    12 p.
V13.0.0    2015/12    12 p.
V12.0.0    2014/09    12 p.
V11.0.0    2012/09    12 p.
V10.0.0    2011/04    12 p.
V9.0.0    2009/12    12 p.
V8.0.0    2008/12    12 p.
V7.0.0    2007/06    12 p.
V6.0.0    2005/01    12 p.
V5.0.0    2002/06    12 p.
V4.0.1    2001/10    12 p.


Rapporteur:  Mr. Gabin, Frederic
Antecedent:  TS 02.53    
See also:  TFO-related TS/TR    

This TS specifies the stage 1 description for the Tandem Free Operation (TFO) feature which provides the capability to avoid tandeming speech codecs in mobile to mobile speech calls. The primary aim is to realise improvements in speech quality. The TFO mode of operation could also be used to reduce inter-Mobile services Switching Center (MSC) transmission bandwidth requirements.


 

Here        Top