SIM card

And you buy a SIM card, costing 100 RMB or so, to get your cell phone number. In the area of Beijing China, you can find two types of cell-phone-service, one of which is operated by “China Mobile 中国移动通信” and the other “China Unicom 中国联通”. I think there is no big difference between them. I’ve chosen the China Mobile service.

China Mobile 中国移动通信
http://www.chinamobile.com/

China Unicom 中国联通
http://www.chinaunicom.com.cn/