1. AT&T Inc.
2. Aztech Group Ltd.
3. Cisco Systems Inc.
4. CommScope Holding Company Inc.
5. Datang Telecom Technology & Industry Group
6. Huawei Technologies Co. Ltd.
7. Hytera Communications Corp Ltd
8. Infinite Electronics Inc.
9. Motorola Solutions Inc.
10. Netgear Inc.
11. Sagemcom SAS
12. Samsung Group
13. Shenzhen Zoolan Technology Co. Ltd.
14. Technicolor SA
15. Telefonica SA
16. Telenet Systems Pvt. Ltd.
17. Telrad Networks Ltd
18. ZTE Corporation
19. ZyXel Communications Corp.