OTO Free International Call app provides free int'l call and it doesn't charge any int'l call fee while it uses your additional/video call minutes given monthly by your carrier company.

[Main Functions]

★ Free International Phone Calls
- You may place free international phone calls to the United States Canada Japan etc. to most of countries in Korea. (However free phone calls are available according to the payment plans of smart phones.)

★ Why OTO Free International Phone Calls?
1. OTO Frree International Phone Call is free because it does not incur cost for any international phone calls placed.
2. You may use international phone calls via the local voice phone bills so no worries.
3. Unlike other services that offer free service to a limited range of countries OTO offers free phone calls to all most of countries.


If you encounter any inconveniences using our service please do let us know. We are always all ears for your valuable opinions.
- website : www.otocall.com
- call center : +82-2-16000546