fring Linux- Make free mobile calls

fring is a free mobile application application that enables free mobile internet calls, live Chat (IM) and File Transfer to other `fringsters` and PC-based services including Skype, Google Talk, ICQ, MSN Messenger, Twitter, Yahoo! and AIM, using free Wi-Fi or your 3G or GPRS internet data plan instead of costly mobile airtime minutes. 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 search-able 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. Easily download fring into your handset and begin fringing in less than a minute. fring bypasses traditional mobile voice and SMS text messaging services by utilizing the mobile handset`s native internet connection. fring does not require any dedicated hardware or airtime and works with phones purchased through any mobile operator. The patent-pending peer-to-peer mobile VoIP technology delivers full-duplex voice quality with rich internet functionality and maximum network Efficiency.