The Ringtone Converter is a software for both Microsoft Windows and Apple Mac systems that allows you to add new ringtones to your mobile phone without the need for cables or expensive SMS services premium rate. Ringtone Converter supports for most makes and models of phones including Audiovox, Alcatel, Ericsson, HTC, Inventec, Kyocera, Microsoft, Motorola, Nokia, NEC, OKWap, Panasonic, Philips, Sagem, Samsung, Sony, Sendo, Sharp and Siemens handsets, with more added every month.