007-중국무료국제전화-007 is a smartphone-only app that allows users to make high-quality international calls to China for free. This app is not designed for calling countries other than China. When calling China, only the domestic call rates apply, while the international calling segment is free. If you have any remaining free call minutes based on your smartphone plan, they will be deducted from your account. Please note that unlimited plans do not include unlimited international calls, and the use of additional numbers for free international calls may be limited depending on the type of plan. The app offers encryption of data for user privacy. It also includes a Chinese calendar and is user-friendly.

The app's main features include the ability to view call history on the home screen and connect to calls by clicking on the call logs. It also filters the Chinese phone numbers from your smartphone's address book. To use the app, simply click on the phone number input field on the home screen, enter the phone number (including the country code), and click on the call button. Alternatively, you can click on call logs or select a phone number from your address book. If you have any questions or concerns, please contact the customer service center via email or phone during business hours.