try add "00" before 11 digit US number

來源: 於 2011-12-07 09:36:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

http://voipdiscount.com/instructions

Please note that when you call a number (even if it's local) you should always dial 00 + countrycode + areacode + subscribernumber