Ranking First in International Phone Call Division of 2014 App Award Korea
2015~2018 Master Consumer Confidence of Korea Brand Awards
Did you know that the 2002 legendary figure of World Cup, Coach Gus Hidink, used OTO?!
OTO Free International Phone Calls app is used by more than 10 million people.
Free International Phone…
OTO Global is your ultimate app for communication with friends and family!
Highest quality international calls at the lowest rates, unlimited free calls to OTO users,
purchasing real phone numbers with OTO Number service
and multimedia messenger are just some of many features you can enjoy with OTO Global app.
1) OTO internationa…