Mobile communication technology

FILE - In this Nov. 1, 2019, file photo, Iowa Democratic Party Chair Troy Price speaks during the Iowa Democratic Party's Liberty and Justice Celebration in Des Moines, Iowa. Two of the first three states to vote in the Democratic presidential race will use new mobile apps to gather results from thousands of caucus sites. The technology is intended to make counting easier, but that raises concerns of hacking or glitches. (AP Photo/Nati Harnik, File)

Democratic presidential candidate Sen. Bernie Sanders, I-Vt., pauses while speaking at a climate rally with the Sunrise Movement at The Graduate Hotel, Sunday, Jan. 12, 2020, in Iowa City, Iowa. (AP Photo/Andrew Harnik)

In this Dec. 11, 2018, photo, a man browses his smartphone outside a Huawei store at a shopping mall in Beijing. Chinese telecom giant Huawei Technologies says its sales rose about 18 percent in 2019 despite U.S. pressure to restrict its business. The estimate came Tuesday, Dec. 31, 2019 in an annual New Year's message to employees. The letter predicts a difficult year in 2020, saying that the U.S. (AP Photo/Andy Wong)

Vietnamese former Minister of information and communication Nguyen Bac Son, left, valuer Hoang Duy Quang, second left, former Mobifone Chairman Le Nam Tra, second right, former Minister of information and communication Truong Minh Tuan, right, stand as judge reads the verdicts at their trial in Hanoi, Vietnam Saturday, Dec. 28, 2019. Hanoi court on Saturday sentenced Son to life imprisonment in a multi-million dollar corruption case that also saw another minister and a dozen executives receive lengthy prison terms. (Nguyen Van Diep/VNA via AP)

Indians shout slogans during a protest against the Citizenship Amendment Act after Friday prayers outside a mosque in Kolkata, India, Friday, Dec. 20, 2019. Police banned public gatherings in parts of the Indian capital and other cities for a third day Friday and cut internet services to try to stop growing protests against a new citizenship law that have left more than 10 people dead and more than 4,000 others detained. (AP Photo/Bikas Das)

FILE - In this April 27, 2010 file photo, a woman using a cell phone walks past T-Mobile and Sprint stores in New York. T-Mobile, in its attempt to buy Sprint for $26.5 billion, shrinking the major wireless companies to three from four and creating another phone giant to rival AT&T and Verizon, has already notched approvals from federal national-security, telecommunications and antitrust regulators. Now it must convince a federal court judge in New York that the 14 state attorneys general suing to stop its deal are wrong. (AP Photo/Mark Lennihan, File)

Song Liuping, chief legal officer of Huawei, speaks during a press conference at Huawei's campus in Shenzhen in southern China's Guandong Province, Thursday, Dec. 5, 2019. Chinese tech giant Huawei is asking a U.S. federal court to throw out a rule that bars rural phone carriers from using government money to purchase its equipment on security grounds. (AP Photo/Mark Schiefelbein)