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ＣＭＥ２０为用户提供的业务俞珑爱立信蜂窝移动设备ＣＭＥ２０在我国有很大市场。本文主要介绍由ＣＭＥ２０所提供的业务。一、电信业务１．话音这是任何一个蜂窝系统所必备的最基本业务，即允许一个移动用户（手机或车台）与另一个移动用户或有线用户完成双向通话功能。...
CME20 to provide users with the business Yu Long Ericsson cellular mobile device CME20 in our country has a large market. This article focuses on the business provided by the CME20. First, telecommunications business Voice This is the basic business essential for any cellular system, allowing one mobile user (handset or car station) to have two-way conversation with another mobile or wired user. ...