Section: 26.2 Domain name for MC services confidentiality protection of MC services identities
Content: A Domain Name for MC Services confidentiality protection used in a host part of a SIP URI indicates that the user part of the SIP URI contains a confidentiality protected MC Services identity. This Domain Name shall be the string "mc1-encrypted.3gppnetwork.org". Protected MCPTT identities are constructed according to 3GPP TS 24.379[ Mission Critical Push To Talk (MCPTT) call control; Protocol specification ]  [111]. Protected MCData identities are constructed according to 3GPP TS 24.282[ Mission Critical Data (MCData) signalling control; Protocol specification ]  [116]. Protected MCVideo identities are constructed according to 3GPP TS 24.281[ Mission Critical Video (MCVideo) signalling control; Protocol specification ]  [115].