OTO Co., Ltd., which develops and services the OTO brand, is an INNO-BIZ company (technology-innovative small and medium-sized enterprise) that creates infinite energy that can turn imagination into reality.

OTO is a global communication service brand used by 5 million people around the world.
OTO's representative applications, OTO Free International Call and OTO Global International Call, have never lost their place as the top domestic international call service for five years since the launch of the service with reasonable prices that satisfy customers and call quality that is as clear and clear as domestic calls.

our own technology and communication service experience accumulated over a long period of time, we succeeded in exporting a telecommunication brand for the first time in Korea, and are cooperating with major telecommunication operators in several countries, including Japan, Vietnam, China, Thailand, Russia, Indonesia, Malaysia, and Myanmar.

We are focusing on research and development to provide diverse and differentiated services that not only excel in technical aspects, but also read the minds of customers and lead the trend of the times.

OTO that connects people

OTO is a global communication service brand used by 5 million people around the world.
OTO's representative applications, OTO Free International Call and OTO Global International Call, have never missed the top spot in domestic international call service for five years since the service was launched with reasonable prices that satisfy customers and call quality that is as clear and clear as domestic calls.

Not satisfied with this, we listen to our customers' voices, understand their needs, and research and develop new services necessary for daily life. Through these efforts, in April 2014, PlayOTO was launched, which allows subscribers to communicate with people from anywhere around the world by combining the international calling service, which is the strength of the OTO brand, with free calls, chatting, and SNS between subscribers, and in June 2015, overseas travel and business trips were launched. As this increases, we launched the OTO roaming service to solve the roaming charges that have become an issue.

We will continue to be an OTO that solves problems from the consumer's perspective.