VoipZoom

 

Client software
Web signup
Free calls*
 - free days given by buying credit
 - weekly free minutes

90
300
Phone-to-Phone feature  
Local access numbers
SMS support
SIP support
 - domain/proxy
sip.voipzoom.com
VoIP-In phone number  
Customer services
Free destinations (landline)
Argentina
Australia
Austria
Belgium
Canada (+mobile)
China (+mobile)
Croatia
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Guam (+mobile)
Hong Kong (+mobile)
Hungary
Ireland
Italy
Luxembourg
Malaysia
Netherlands
New Zealand
Norway
Panama
Poland
Portugal
Puerto Rico
Russian Federation [Moscow]
Singapore (+mobile)
Slovak Republic
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand (+mobile)
United Kingdom
United States (+mobile)

* During Freedays you can call all free destinations at no cost. Minutes of free calls are measured over the last 7 days and per unique IP address. When you run out of Freedays or limit is exceeded the normal rates apply.