Huawei: Chinese tech giant with big ambitions
4 December 2012 Last updated at 22:53 GMT
One of the biggest names in Chinese industry, Huawei, is a hi-tech giant, employing tens of thousands of highly-skilled engineers.
But in the US, the telecoms firm is widely regarded with suspicion and seen by some as an agent of China's Communist Party.
The BBC's Rory Cellan-Jones travelled to China to find out more about the company and to meet its senior director in Shenzhen.