area code区域号码
coin call投币电话
conference call会议电话
credit card call信用卡电话
crossed lines电话干扰
direct dial call直拨电话
domestic call国内电话
exchange number交换台号码
emergency call急救电话
person-to-person call叫人电话
public telephone公用电话
long distance call长途电话
local call市内电话
mouth piece传话机
intercom system对讲机系统
overseas call国际电话
party line同线电话
radio telephone无线电话
telephone book电话本
telephone booth电话亭
telephone number电话号码
telephone office电信局
service meter通话次数表
station-to-station call叫号电话
switchboard电话总机
wireless transceiver无线电对讲机
