“Avoiding discovery is really important for Huawei. It is both time consuming and invasive,” said Julian Ku, a professor of law at Hofstra University. He added that the problem with Huawei’s move is that the United States government can easily make the case that it needs discovery in order to get more facts and make its case.

In the news conference on Wednesday, Huawei also argued that growing limits on American purchases of Huawei equipment hurt American consumers. In a separate move, Mr. Trump this month issued an executive order barring American telecommunications firms from installing foreign-made equipment that could pose a threat to national security. The order did not mention China or Huawei but still works as an effective ban on its products.

Mr. Song said the actions against Huawei took away the freedom of choice for American carriers and consumers, and it would disproportionately damage rural areas. While major American carriers do not use Huawei equipment, the low prices of Huawei technology have made it critical for smaller carriers seeking to connect more remote parts of America.

As the United States government took to the road to lobby allies across the world about the dangers of using Huawei products, Huawei has repeatedly turned to the American court system and press. In carefully managed and regularly scheduled interviews, Huawei’s founder, Ren Zhengfei, has argued that Huawei would refuse any efforts by Beijing to snoop on American communications or shut networks down and that its products are not a threat to United States national security.

Thus far, Huawei has little to show for its more aggressive use of the courts and the news media.

This month, the Trump administration blocked American companies from selling components and software to Huawei. The move cuts Huawei off from the critical American portion of the global electronics supply chain, which accounts for necessities like computer chips and software, and has the potential to inflict major damage on its business.

In an interview with Chinese reporters last week, Mr. Ren said the company had been stockpiling American components as a precaution against just such an eventuality. Still, in the longer term, industry analysts argue that it would be difficult for Huawei to maintain its current businesses while cut off from American technology.