fring™ is a free mobile VoIP software that lets you talk and live chat (IM) using your handset's internet connection instead of costly mobile airtime (GSM) minutes. fring enables free mobile calls over Wi-Fi internet access or your 3G or GPRS Internet data plan and is enhanced with real-time contact availability (presence) so you can see who’s available before dialing. Easily communicate with all your fring, Skype®, MSN® Messenger, ICQ, Google Talk™, Twitter and regular phone contacts from one, integrated contact list. Make cheap local and international mobile VoIP calls to contacts’ PCs and mobile phones and even call-out to landline numbers and regular cellular destinations, as fring also supports SkypeOut and hundreds of SIP-based services such as GizmoProject, VoipCheap, VoipStunt, Free World & SIPNET even from non-SIP enabled handsets.