Huawei 's decision ends an aggressive push for business in the world 's largest economy . U.S. '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 . Nortel is world 's third largest supplier of network gear . Japanese firm failed to secure contracts with any leading China telecoms operators .
U.S. '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 . Nortel is world 's third largest supplier of network gear . Japanese firm failed to secure contracts with any leading China telecoms operators .