1 billion users in 100 countries

Viber Turns to SPIRIT for High Quality HD Mobile VoIP Calling

Viber’s Recently Launched Free Mobile VoIP App is Powered by SPIRIT’s TeamSpirit Voice Engine Mobile

MOSCOW, Russia – February 15, 2011 –  SPIRIT DSP, the world’s top voice and video over IP engines provider, has announced today that its TeamSpirit® Voice Engine Mobile is powering the new Viber application that offers free HD Voice over IP (VoIP) calls from the iPhone.

“Within three days of launching Viber on the iPhone late last year, we received one million downloads, and seven million within the first month, quickly becoming the No. 1 free app in the Netherlands, Spain, Singapore, Taiwan, Israel and several other countries, which validates the enormous demand for quality and free mobile VoIP calling,” said Viber Media’s CEO Talmon Marco.  “We’re incredibly pleased with this massive uptake and can credit SPIRIT’s Voice Engine Mobile for the quality of the Viber voice experience.”

Available in the Apple App Store, Viber’s free mobile VoIP app can make calls over 3G and Wi-Fi connections, bypassing the use of any cellular data minutes; calls are free worldwide.  Unlike other VoIP services like Skype, Viber requires no registration or need to log-in to make calls.  Users simply download the app, plug in their phone number and the app finds everyone on the user’s contact list that also has the Viber app.  If contacts do not have Viber, users can easily invite them to the service.  Viber also sends alerts for missed calls.  Plans to release Viber for Android, BlackBerry and Symbian are in the works.

“The new Viber application is wildly popular in the mobile VoIP market as a serious Skype alternative, and we’re thrilled that Viber Media chose SPIRIT’s Voice Engine Mobile to ensure a quality calling experience for their users,” said SPIRIT’s Chairman and Founder Andrew Sviridenko. “Our ability to ensure Viber users have a quality calling experience, even over unmanaged IP networks like Wi-Fi and 3G, amplifies the growing sophistication and demand for a quality mobile VoIP experience, anytime, anywhere.”

SPIRIT’s TeamSpirit Mobile enables HD-quality voice and video communications on a broad range of mobile devices, addressing all impairments inherent with IP networks – such as congestion, echo, noise suppression, latency, delay (jitter), packet loss, lip synchronization, etc. – to secure high quality voice over Wi-Fi, LTE/WiMAX and 3G/4G networks. It includes highly optimized standard voice and video codecs, such as G.711, G.723, G.729, iLBC, SILK, H.263, H.264 and SPIRIT’s patent-free wideband IP-MRTM codec, specifically optimized for voice transmission over IP networks.  TeamSpirit Mobile is available on all popular smartphone operating systems including iPhone iOS, Android, Windows Mobile and Symbian.

About Viber Media

Viber Media was founded in 2010 by the same people who started iMesh, the world’s longest-standing P2P client and the first to offer authorized file-sharing. Viber Media is now taking the digital revolution one step further by offering a free mobile VoIP service.


SPIRIT DSP is the world’s top voice and video over IP engines provider. SPIRIT’s innovative carrier-grade voice and video software platform allows carriers, OEMs and software developers to deliver superior quality and integrated voice and video over IP services for telecommunications, cable, and mobile service providers, enterprises, internet portals and social networks. More than 200+ million voice and video channels in 80+ countries are based on SPIRIT’s platforms. SPIRIT software powers popular products from Adobe, Apple, ARM, AT&T, Blizzard, BT, China Mobile, Cisco, Ericsson, HP, HTC, Huawei, Korea Telecom, Kyocera, LG, Microsoft, NEC, Oracle, Polycom, Radvision, Samsung, Skype, Texas Instruments, Toshiba, Veraz, Viber, ZTE, among 250+ others. SPIRIT’s direct OEM customers jointly exceed 60 percent of the global smartphone market share. VideoMost.com is the SPIRIT spin-off for multi-point, video-web-conferencing service. SeeStorm.com is the SPIRIT spin-off for 3D video software platform.

14 February 2011