void imlInterp_JoinConference(object sender, ConferenceEventArgs e) { // If the line isn't in use, don't do anything if (telecomProvider.IsLineInUse(lineNumber)) { LoggingService.AddLogEntry(LogLevel.Extended, "(Line " + lineNumber + ") Joining conference ID " + e.ConferenceID, false); telecomProvider.AddLineToConference(e.ConferenceID, lineNumber); } }