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.
Telefone através de VOIP para todo o mundo a baixo custo. Fale para telemóvel em Portugal por 3,25 cêntimos. Também com soluções e tarifários para empresas