Original sentence: It competes with international operators like Personal (Telecom Argentina / Telecom Italia), Claro (America Movil) and VOX (KDDI), using technologies AMPS/TDMA (to be shut down) and GSM/GPRS both over 850 MHz.TIGO Paraguay is the largest mobile operator with more than 1.2 million users
Edited sentence: It competes with international operators like Personal (Telecom Argentina / Telecom Italia), Claro (America Movil) and VOX (KDDI), using technologies GSM/EDGE and WCDMA/HSDPA both over 850 MHz.TIGO Paraguay is the largest mobile operator with more than 2.8 million users