PBX ぴい・びい・えっくす pii·bii·ekkusu 1. Private Branch eXchange; PBX Noun #222533 Open Menu Add to collection... Open
デジタルPBX ぴいびいえっくすの dejitarupiibiiekkusuno 1. Digital PBX; Of digital PBX Noun Open Menu Add to collection... Open