icf/accept_remote_recorder_level is a SAP Parameter attribute which is used to control accept external switch of recorder level for internet communication fr information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
This parameter determines whether an external client may change the SAP
System recorder level. This can be necessary for diagnostic purposes.
However, for security reasons it is not possible by default.
Note After activating the profile paramter, ensure that the profile parameter is activated after ending the action. This value influences the runtime of the HTTP request
See SAP Parameter Documentation for full SAP documentation for this profile parameter.