This will be an all-electronic meeting with no face-to-face participation. 19-27 August 2021 Most business will be conducted by email. Check CT1 reflector for more information (https://list.etsi.org/scripts/wa.exe?A0=3GPP_TSG_CT_WG1). The following mailing lists will be used during the e-meeting: 3GPP_TSG_CT_WG1_E_IMS 3GPP_TSG_CT_WG1_E_MAIN 3GPP_TSG_CT_WG1_E_MC 3GPP_TSG_CT_WG1_E_SERV