After about three days of negotiations, FutureWei and CFIUS agreed on the deal for ongoing oversight and FutureWei agreed to give up the 3Leaf assets, Bross said.

Shortly after that deal was reached, Huawei in which it asked the U.S. government to to clear up what it called misperceptions about the company.

In addition to the arrangement with CFIUS, Huawei has taken other steps to help assure regulators outside China that its products don't present a security risk. It has contracted with Electronic Warfare Associates for third-party security audits of its software and hardware products. These reviews ensure that there are no "back doors" or Trojan horse programs that would let the Chinese government or any other entity gain access to Huawei equipment, he said. Huawei makes EWA's reports available to regulators and customers, he said.

Before joining Huawei, Bross was group CTO at British Telecom, which awarded Huawei significant portions of its far-reaching 21st Century Network project. The U.K. government and public were worried about Huawei at first, but Huawei worked with regulators and BT customers to ensure its products were secure, he said. Its software for the network infrastructure was vetted by customers and security agencies, and Huawei ensured that the software was administered by U.K. citizens who also had been vetted, he said.

All other major telecommunications vendors have facilities in China, and Huawei takes greater efforts than they do to ensure its products are safe from intrusions, according to Bross. Huawei says its products are used by 45 out of the 50 largest carriers in the world.