A method and apparatus for on-line detection of partial discharge events in an a. At least one polymer link connects adjacent metallic rings. At least one of the diazonium reagents andor azo couplers may comprise at least one ionic group, ionizable group, or mixture thereof or at least one alkylene oxide group. After the call is ended, the system allows the agent to describe the call using voice commands or phrases that result in one or more associated activity codes being electronically recorded in association with the call. On a bottom opposite end of the nut body is an annular recess located on a perimeter around the bore.