Airtel has upgraded its mobile network in Tamil Nadu to enable a superior voice experience for 4G smartphone users. This will add to the smartphone experience. It has further optimised its 3G network, which carries bulk of the voice traffic for smartphone users, by deploying latest network solutions and advanced network software. Over the next six to eight weeks 4G smartphone users on the Airtel network will experience improved voice clarity, call stability and coverage, says a company press release.
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