You can call mobiles and landlines with Skype credit or with an unlimited world subscription which allows you to call the landlines and mobiles of your friends and family in over 60 countries.
You can call landlines and mobiles in Canada, China, Guam, Hong Kong SAR, Puerto Rico, Singapore, Thailand, and the United States. The world subscription is not available in Australia, Brazil, China, Taiwan, or Korea.
You can even reverse the charges to landlines in the US or Canada so the recipient pays the charges ($6 per 60 minute call).
Join Discussion