Another online option for cheap international calls is services such as Skype. Skype is a lot like an IM service in some ways. Calls from one Skype user to another are absolutely free, which makes for some truly cheap international calls. Skype is also easier to use, makes it far easier to video conference, and has excellent customer support. Skype also allows a caller to connect from Skype to landlines and mobile lines, which is very flexible. However, these calls incur additional charges.