touch tone meaning in English

按键电话机

Cash / margin account ( s ) require e - service ( i . e . mobile phone / touch tone / internet stock trading service )
现?保证?帐户选用电子交?服务（即?动电话互动音频电话互?网络证券交?服务）
High quality metal surface finish adds a business touch tone of our bestselling bluetooth mono headsets , the new and adjustable earloop design make your wearing more comfortable , superior sound quality secures your communication wherever you go
超大金属感控制面板，简洁欧式设计理念，可调节而耳挂设计，佩戴更为舒适，简洁时尚的外形，彰显商务本色。