In order to make phone calls via the Internet one’s device has to be compatible with Softphone software. In example in order to call from a PDA using VoIP technology one has to install Softphone software, in order for it to work properly, PDA has to have Softphone compatibility.
Stonehenge is an international carriers carrier offer a full A-Z, US domestic and Canada termination, turn key white label VoIP solution, Mobile VoIp, and ratail IP products.