Even if you leave for overseas travel or language training, you can use the same number you used in Korea for free calls and free text messages.
It is a free calling application that can be used.

What is Todos Service?
Leave your USIM card at the Todos Center,
Wherever there is an internet connection,
With your own phone number at no extra charge,
It is a service that allows you to use free calls and SMS (short text).


Why do you need Todos service?
By using their existing phone number, Todos
Unlike traditional internet phone calls or free calling apps,
Personal/real name authentication is possible for financial transactions.
In addition, compared to other VoIP services,
That's because it saves you money on calls and SMS.


What else do you like?
You don't need two separate phones for personal and business use!
Even if the business person in charge changes, the business phone number remains the same!
Stop business inquiries from personal calls!
Business takeover is smooth and business activities are maintained.


These people are absolutely necessary.
Exchange student/international student free call, free text message service
Free calls to expatriates, free text service
Migrant worker
Free call and free text message service for long-term overseas stays of 10 days or more


It is also necessary in such a company.
Companies that have many salespeople and change frequently
Companies with many overseas business trips by employees
Companies that need to comply with business hours
(※ Todos makes and receives calls with the app, so
Calls can be restricted by logging out of the app during times.)