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.
VenIP - it''''s an international brand Vensys Sp. z oo, which combines the experience and practice of the best specialists in Eastern Europe in the field of VoIP.