About

OTO Free International Call is an android app that allows users to make free international calls without any additional charges. The app utilizes the user's monthly additional/video call minutes provided by their carrier company. It enables users to make free calls to countries such as the United States, Canada, and Japan, among others. Unlike other services that have limited country coverage, OTO provides free phone calls to most countries. The app also offers the convenience of using local voice phone bills for international calls. If users encounter any issues while using the app, they can contact the call center or visit the OTO website for assistance.

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