PTA shares tips to improve calls, internet quality

• Urges users to turn on 4G/LTE, VoLTE settings on their phones • Consumers with older SIM cards told to upgrade for 4G support ISLAMABAD: The Pak­i­stan Telecommu­nica­tion Authority (PTA) adv­ised mobile phone users on Thursday to adjust their network settings and adopt newer technologies, including Voice over Long-Term Evolution (VoLTE), Wi-Fi Calling, and VoWiFi, to improve their calling and m