2. AsiaInfo
3. Huawei
4. Yiyang ICT
5.Amdocs Langxin
6, the god code, strange
7. Neusoft
8. ztesoft
9. Lian Xin Yongyi
10, Puxin
1 1, longma information technology co., ltd.
12, amdocs China
13, Huasheng Tiancheng
14, Datang Telecom Software
Tianyuan dike 15