You can't enter an international phone number in the Mailing Address
& Phone number section of the Personal Interview. The IRS will not
call an international phone number.
You can enter the phone
number of a relative or friend in the U.S,, or a "dummy number"
(800-555-1212). This will allow you to complete your return, and the IRS
will identify your entry as a placeholder number - if they have
questions, they will mail them to you.
answer by: TurboTaxTMRebeccaC