ＰＢＸalso: ピービーエックスFreq.FrequencyTop 100,000じ字FuriganaMeanings1nounPBX; Private Branch eXchangeTechnical term for a private telephone exchange used within an organization.会かい社しゃの内ない線せん電でん話わはＰＢＸで管かん理りされている。The company's internal phone lines are managed by a PBX.
