You have to carry a bleeper so that they can call you in at any time. 你要随身带着寻呼机,以便他们随时呼你。
M-commerce is a kind of business activities using mobile terminals, like portable computer, PDA, mobile phone and bleeper, to purchase products or services. 移动商务(M-commerce)是指通过便携电脑、个人数字助理(PDA)、手机、传呼机等移动终端进行购买产品或者服务的一种商务活动。