[] the business or process of sending messages and signals by telephone电话通信◆a mobile telephony business移动电话业务◆The company offers Internet and telephony services.这家公司提供互联网和电话服务。⨁cable / fixed-line / mobile / voice / wireless telephony有线／固定／移动／语音／无线电话服务⨁a telephony business / company / operator / provider电话业务／公司／运营商／供应商