GTL Phone
GTL Phone is a standard-based mobile VoIP softphone that works over 3G, 4G and Wi-Fi networks. GTL Phone provides superb sound quality and smooth VoIP...
Global Teletalk Ltd.
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GTL Phone is a standard-based mobile VoIP softphone that works over 3G, 4G and Wi-Fi networks. GTL Phone provides superb sound quality and smooth VoIP...