VoipBlast

 

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

90
300
Phone-to-Phone feature
Local access numbers  
 - with your own registered phone
 - from any phone with PIN code
SMS support
SIP support
 - domain/proxy

sip.voipblast.com
VoIP-In phone number
  (in selected countries only)
Customer services

* 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.
Free destinations (landline)