1. ALE International SAS
2. Cisco Systems Corp
3. Dialogic Inc.
4. Ericsson Inc.
5. Fujian Belfone Communications Technology Co. Ltd.
6. Genband Inc.
7. Genew Technologies Co. Ltd.
8. Guangzhou strong sound electronic equipment Co. Ltd
9. Hongking Communication Technology Shenzhen Co. Limited
10. Hongkong Koon Technology Ltd.
11. Huawei Technologies Co. Ltd.
12. International Business Machine Corporation
13. Italtel Inc.
14. Kolmisoft UAB
15. L-Square Century Co. Limited
16. LS Cable India Pvt. Ltd.
17. Measurements And Controls India Limited
18. Metaswitch Networks
19. Nanjing Deshiweiye Software Technology Co. Ltd
20. Nokia Siemens Networks
21. Rockwell Automation
22. Shenzhen Allywll Info & Tech Co. Ltd.
23. Shenzhen Dinstar Co. Ltd.
24. Shenzhen Skyline Technology Co. Ltd.
25. Sonus Neworks Inc.
26. VoIPInfoTech Pvt. Ltd.
27. ZTE Corp.