BTS PHONE
A number of tourists enjoy the views of Mount Bromo with the background of Base Transceiver Station (BST) Telkomsel at the spike of one Probolinggo, East Java, Friday (19/5). Until May, Telkomsel has 140 thousand BTS spread across Indonesia to serve 170 million customers. ANTARA PHOTO/Zabur Karu/foc/17.
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