Name,Description,Contact,Change Controller,Reference rtp+ecn,Indicates that ICE agent has the capability to perform ECN path testing for RTP-over-UDP flows.,[IESG],[IESG],[RFC6679] ice2,"The ICE option indicates that the ICE agent using the ICE option is implemented according to [RFC8445].",[IESG],[IESG],[RFC8445] trickle,"An ICE option of ""trickle"" indicates support for incremental communication of ICE candidates.",[IESG],[IESG],[RFC8838]