As of LCOS version 9.24, it is possible to use CoA messages to modify current RADIUS sessions.
If you operate an external hotspot server, it is possible to change the attributes of Public Spot sessions after the user has authenticated. This is achieved with dynamic authorization by means of RADIUS CoA (Change of Authorization). See also the section "Dynamic authorization by RADIUS CoA (Change of Authorization)" in the RADIUS chapter.
Note: In LCOS version 9.24, this function is implemented for the Public Spot only.