I've just read this article on the IOL Technology website, and I thought that you might find this interesting:

"Mobile VoIP (mVoIP) is about to become mainstream. Skype, Fring, Nimbuzz, Truphone and others are all offering mVoIP through your cellphone's Internet connection.

"Classic voice over IP (VoIP) is old technology (although we waited a while for it to be legal in South Africa because Telkom couldn't work out how to monopolise it), and the next generation is poised to free users up even further by linking the technology to existing cellphone connectivity. It is global, ready-to-use, slick, good quality and, best of all, it's mostly free.

"It couldn't be easier - mVoIP software allows you to talk and Instant Message (IM) via your handset's Internet connection. You will still be paying for your Internet connection, but not for a phone call. To your service provider, data is data; you could be surfing the Web, ftp-ing files to your webserver, making a VoIP call or scanning for open ports on the Pentagon's servers. It doesn't matter - it's all just data to them. So it really doesn't make a difference if you're using your Internet connection for making phone calls...."

Read more at: http://www.ioltechnology.co.za/article_page.php?iSectionId=2884&iArticle...