Motorola Solutions Inc. (US)
Nokia (Finland)
ZTE Corporation (China)
Telefonaktiebolaget LM Ericsson (Sweden)
Huawei Technologies Co. Ltd (China)
AT&T Inc. (US)
Harris Corporation (US)
Hytera Communication Corp Ltd (China)
Cobham Wireless (UK)
Ascom (Switzerland)
Mentura Group OY (Finland)
Leonardo SpA (Italy)
Inmarsat PLC (UK)
Zenitel (Norway)
and Telstra (Australia)