Dated: 10th Mar, 2022:

In SA4#117-e, the members have decided to change the name of MTSI SWG to RTC (Real Time Communications) SWG.

Accordingly in 3GU document submission portal, the numbering prefix for the RTC adhoc meetings has been changed to 'S4aR22' and the value is reset to 1.
The only allowed file extension is .zip

All the current RTC (previously MTSI) related documents are available at ftp://ftp.3gpp.org/TSG_SA/WG4_CODEC/3GPP_SA4_AHOC_MTGs/SA4_RTC/Docs/ 

If you have any doubts or questions, please write to me at jayeeta@3gpp.org