一、通话掉线对于一个常用手机用户来说,往往会碰到这样的问题,当你正在兴致勃勃地通话时,突然通话停止,这时你非常生气,但却弄不清是咋回事儿。实际上,这是网络运营商的一项技术难题,虽然制造公司在这个技术上已竭尽全力,但遗憾的是,这一难题没有得到彻底地解决。现在具体地分析一下手机掉线问题的原因。当你处在地下商场或者密封很严的电梯里时,手 First, calls dropped For a common mobile phone users, often encounter such a problem, when you are excited to talk, suddenly stop the call, then you are very angry, but can not figure out what is going on . In fact, this is a technical problem for network operators. Although manufacturing companies have done their best in this technology, it is regrettable that this problem has not been completely solved. Now analyze the reasons for phone dropped calls. Hand when you are in an underground mall or in a tightly sealed elevator