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On-Demand International Roaming | Demo
Introduction
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STEP 1

SIGN UP
FOR IDD1526
SERVICE
REGISTER MOBILE
NUMBER TO
YOUR ACCOUNT
SEND SMS
COMMAND
RECEIVE VIRTUAL
NUMBER FROM
SMS

Sign up here for IDD1526 service.
Register your Singapore mobile number to the account.
Send a SMS to +65 9229 5935 with content "CF Overseas number" (e.g. CF6012xxxxxxx) from the registered mobile number to set your overseas number and request for virtual number.
System will reply back with SMS an assigned virtual number.

STEP 2

CHANGI AIRPORT

Before flying off Singapore, divert all the voice calls to the assigned virtual number by entering **21*Virtual Number# and press the call button. Alternatively, you can navigate through the Call Setting function of your mobile menu to do so.
Turn off your phone and take the flight.

STEP 3

OVERSEAS AIRPORT

OVERSEAS SIM CARD

Upon touching down on the destination airport, you will start receiving calls calling to your Singapore number on your overseas number.
If your overseas roaming number is an overseas mobile, just insert the overseas SIM card SIM card into a compatible Mobile. You will start receiving calls calling to your Singapore numbers on your overseas mobile.
The SMS to Your singapore mobile number can still be received and reply on your Singapore SIM card if it is roaming on the destination country.
If you are changing your overseas number, simply send the SMS command "CF Overseas Number" again from your Singapore mobile. The system will update the new overseas number.

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