Software by VirtualiPhone LTD.:

v-Phone is a feature-rich VoIP Internet-Phone software. v-Phone customers can talk to each other by voice or video calls, including multi-participant conference calls, send SMS and MMS messages, and more, completely free! Additional features of v-Phone allow our customers calling regular and cellular phones worldwide at great rates, sending SMS messages to cellular phones, a built-in answering machine with Web access, and other exciting features