From your app go to My account >> Call Forwarding and follow the instructions.
To forward calls to a number in Japan, please enter a number, including the area code or the mobile prefix. To forward calls to a number outside of Japan, please enter a number, including the country code followed by the area code and the local destination number. Please note that your 050 number must be issued before you can set up call forwarding.
To forward calls to a number in Japan, please enter a number, including the area code or the mobile prefix. To forward calls to a number outside of Japan, please enter a number, including the country code followed by the area code and the local destination number. Please note that your 050 number must be issued before you can set up call forwarding.