A Base Tranceiver Station (BTS) for connecting wireless devices such as mobile phones with a network is seen on a rooftop in central Warsaw, Poland on November 30, 2019. Some 14 cities in Poland have been testing new 5G technology and at least one network claims to start offering the service to customers in the coming year. 5G technology has been a hot topic in Poland after one of the main suppliers of equipment, China based Xinhua has come under scrutiny for industrial espionage.
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