One of Huawei's biggest rivals - Nokia - has said the UK should be wary of using the Chinese firm's equipment.
The Finnish company said Huawei's telecoms kit had vulnerabilities that meant it posed a risk to 5G networks.
Nokia and Sweden's Ericsson are competing with Huawei to sell next-generation telecoms equipment.
Huawei is seen as leading the race in many markets, but the US is putting pressure on allies, including the UK, to bar the firm over security fears.
Nokia's chief technology officer Marcus Weldon said the pressure from the US was serving as a counterbalance to unfair financial advantages that Huawei had enjoyed in the past.
"It's fairness returning to the market," he told the BBC.
"We were disadvantaged in the past relative to the practices that the Chinese were allowed to have in terms of funding mechanisms."
Huawei has denied that its equipment poses a security risk.
"These comments are misleading," said a spokesman.
"We believe secure, resilient networks can only be delivered by collaboration across the whole industry, working to common standards on privacy protection and cyber-security, so that all participants can be judged equally.
"We have a proven track record of delivering secure, trustworthy and high quality products to every major telecoms operator in Europe. Cyber-security remains Huawei's top priority and here, in the UK, we are subject to the most rigorous oversight compared to any competitors in our sector."