来电显示 ,是近年来电信部门推出的一种新的业务 :显示主叫方的电话号码和呼叫时间等信息。无绳电话机由座机和无线手机组成 ,无线手机可以在一定范围内任意移动。文章介绍如何在无绳电话机的无线手机上实现来电显示功能 Caller ID is a new service introduced by telecom departments in recent years. It displays information such as the caller’s phone number and call time. Cordless phones consist of landline phones and wireless handsets that can be moved anywhere within a certain range. The article describes how to realize the caller ID function on the wireless handset of the cordless telephone