try add "00" before 11 digit US number

来源: 于 2011-12-07 09:36:20 [博客] [旧帖] [给我悄悄话] 本文已被阅读：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