„Take all your buddies mobile with fring™, call and chat with them for free and see who’s online before dialling!
fring™ is a mobile internet service & community that enables you to access & interact with your social networks on-the-go, make free calls and live chat with all your fring, Skype®, MSN® Messenger, Google Talk™, ICQ, SIP, Twitter, Yahoo!™ and AIM®* friends using your handset’s internet connection.“
http://www.fring.com/fring_is/what_is_fring/