What is KDB Todos Service?
Leave your USIM card at the KDB Center or use a separate dongle device.
Wherever there is an internet connection around the world
No additional charge to your phone number,
This is a service that allows you to use free calls and SMS (short messages).


Why do you need KDB Todos service?
By using your existing mobile phone number,
Unlike existing internet phone calls and free calling apps,
Identity/real name authentication for financial transactions is possible.
In addition, compared to other Internet phone services,
Because you can save money on calls and SMS.


What else would be good?
No need for two separate phones, one for personal and one for work!
Even if the person in charge changes, the business phone number remains the same!
Stop business inquiries from personal phone calls!
We facilitate business takeover and maintain continuity of business activities.


These people are absolutely necessary.
Free calls and free text messages for exchange students/international students
Free calls to expatriates and free text messages
migrant worker
Free calls and free text services for long-term overseas stays of 10 days or more


A company like this needs it too.
A company with a large number of salespeople and changes frequently
Companies with a lot of overseas business trips
Companies that need to comply with business hours
(※ Todos makes and receives calls with the app, so it is not necessary
You can limit calls by logging out of the app at times.)