Operating profit (loss) from incidental business
附帯事業営業利益又は附帯事業営業損失（△）
Operating revenue and expenses from incidental business
附帯事業営業損益
Operating profit (loss) from telecommunications business
電気通信事業営業利益又は電気通信事業営業損失（△）
Communication facility fee
通信設備使用料
Non-current assets retirement costs
固定資産除却費
Amortization of capitalized research expenditures
研究費償却
Common expenses
共通費
Facilities maintenance expenses
施設保全費
Business expenses
営業費
Private line
専用収入