China 's Huawei has ended attempts to gain access to the telecoms gear market . U.S. officials have said Huawei is national security threat ; China has not . Huawei is world 's second largest supplier of network equipment . Chinese firm failed to secure contracts with any leading U.S. telecoms operators .
China 's Huawei has ended attempts to gain access to U.S. telecoms gear market . U.S. officials have argued Huawei is national security threat ; Huawei has denied . Huawei is world 's second largest supplier of network gear . Chinese firm failed to secure contracts with any leading U.S. telecoms operators .