Jajah
Based: Mountain View, CA
Founded: 2003
www.jajah.com
Callback phone systems have been around for decades as a way to get around onerous international tariffs. Jajah, which innovated as a Web-based callback system, stepped back to the plate this year with technology that lets customers with Symbian or Java-enabled mobiles set up VoIP calls from their cell phones. Between that and plug-ins for Firefox, Google, Plaxo, and Outlook, not to mention a huge international termination network, Jajah is innovating its way to the top of the heap.
