Parameter: CDR format (update)
From TBwiki
Format of the text CDR log written periodically during call if the CDR option Enable periodic CDR update is used. This format contains CDR Text Variables that are automatically replaced.
Example
@{Timestamp:%Y-%m-%d %H:%M:%S.@m%z}:UPD,SessionId='@{SessionId}',LegId='@{LegId}'
