Voice Calls
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With WORLD WING, DOCOMO's international roaming service, you can use your usual number for calls in countries and regions around the world. Voice/data Communications Charges and Service Areas for Using Your Mobile Phone Overseas |
How to Make and Receive Calls
Calling from the Phonebook
Make calls directly from your Phonebook even while overseas
- Calling Japan
- Calling another WORLD WING user
- Calling a non-DOCOMO roaming phone
International Dial Assist settings
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When calls are made overseas using the Phonebook, the confirmation screen for making the call will be displayed as shown in the figure on the left. If you select
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International Dial Assist Settings (in Japanese only)

Calling without using the Phonebook
1. Calling from your country of stay to Japan Calling another WORLD WING user (or a non-DOCOMO roaming phone)
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- Dialing procedure
2. Calling a mobile phone or landline phone in your country of stay
- Dialing procedure
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When calling from a mobile phone supporting International Dial Assist settings, please select "Call original number" when the dialing method confirmation screen is displayed.
If you cannot make a call with the above dialing procedure, dial the country code before dialing the other party's phone number from the area code (city code). Applicable country code: USA "1", Germany "49"
If you cannot make a call in Mexico with the above dialing procedure, dial "01" before dialing the other party's phone number from the area code (city code).
3. Calling from your country of stay to a mobile phone or landline phone in another country (other than Japan)
- Dialing procedure
1 For country codes, see here.
You may need to dial "0" at the beginning of the phone number for calls to some countries and regions (Italy etc.).
When calling a mobile phone in Mexico, please dial "1" before the mobile phone number. When calling a mobile phone in Argentina, please dial "9" after the country code "54".
How to receive a call (having someone call you)
1. Receiving a call from Japan in your country of stay
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- How you can be reached
Have the other party call your usual mobile phone number
2. Receiving a call from a country other than Japan in your country of stay

- How you can be reached
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International Call Access Numbers
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Even if Caller ID Notification is set, a number may not be able to be displayed correctly and a message such as |





