“全球通”是指GSM全球数字移动电话系统。GSM是全球数宇移动通信系统的缩写。GSM的最大特点是容易实现国内和国际漫游。持有全球通数字移动电话的用户可以携带着自己的手机到外地甚至外国打电话。目前中国电信的“全球通”网络已发展成为29个省、市、自治区联网全自动漫游的数字移动通信网络。持有全球通数字移动电话的用户可以携带着自己的手机到这些具有全自动漫游的数字移动通信网络的地区使用;持有全球通国际呼叫功能手机的用户,携带手机到达与我国联网的国家或地区后,只需打开手机电源,自动扫网到出现对方国家(地区)网络代码,经用户确认后,即可随意在当地使用中国电信的“全球通”手机了。可见,使用“全球通”手机是非常方便的。那么使用 “GSM” refers to the GSM global digital mobile phone system. GSM is the acronym for the world’s number-one mobile communication system. GSM’s most prominent feature is easy to achieve domestic and international roaming. Global digital mobile phone holders can carry their own mobile phones to the field and even foreign call. At present, China Telecom’s “Global Communications” network has developed into a fully automated roaming digital mobile communications network in 29 provinces, municipalities and autonomous regions. Global digital mobile phone users can carry their own mobile phones to these areas with fully automated roaming digital mobile communications network; users holding GSM-enabled international mobile phone handsets to reach the country or area networked with our country , Simply open the phone power, automatically sweep the network to the other country (region) network code, the user confirmed, you can freely use the local China Telecom’s “Global Communication” phone. Visible, the use of “GSM” mobile phone is very convenient. Then use