fring, a free mobile VoIP software, allows you to talk & IM via your handset’s internet connection to other mobile phones and PC-based services such as Skype, MSN Messenger, ICQ, Google Talk, SIP and Twitter, at no extra cost.

With fring, you’ll gain benefits previously only found only on the PC and get empowered with mobility as never before: make cheap mobile internet calls, see who’s online before dialing with contact availability indicators (presence), live chat instead of SMS, engage in multiple conversations simultaneously, view conversation history and more! Take all your fring, Skype, Google Talk, ICQ, MSN Messenger and Twitter buddies with you wherever you go and view them, along with your regular phone contacts, from one integrated and searchable contact list.

Also make cheap calls to landlines and regular cellular contacts using your SkypeOut account or hundreds of SIP-based providers such as Eutelia, GizmoProject, VoipCheap, VoipStunt, Free World & SIPNET over fring, even from non-SIP enabled handsets. As fring automatically roams between Wi-Fi and 3G networks, you can effortlessly login to recognized Wi-Fi hotspots, mindlessly gaining access to the best network for optimal call quality and savings.