Two major trends are set to coincide in the coming months: 1. Google’s Android operating system will be adopted by vendors developing consumer electronic products with any kind of a display – be it mobile handsets, tablets, netbooks, mediaphones or other devices. 2. Consumer video chat services will increase. With the introduction of Skype TV and Apple’s iPhone 4 FaceTime service, consumer electronic vendors can no longer ignore the need to provide video chat solutions as part of their devices. These two trends come with a set of challenges that vendors have not experienced until today. In this webinar, Tsahi Levent-Levi and Amit Lavi will discuss these challenges and what vendors can do to mitigate them. What will you learn? * The building blocks of a FaceTime-like mobile video chat service * Challenges in developing video chat services * Different technology routes taken by companies supporting video chat * How video chat services map into the Android OS * RADVISION’s BEEHD offering for Android Devices

1. Realizing “FaceTime” on Android Devices Amit Lavi Product Manager Tsahi Levent-Levi Director of Technology and Solution

2. Agenda What is Apple FaceTime? The Makeup of a Video Chat Service Technology Routes Video Chat and the Android OS Delivering High Quality User Experience BEEHD for Personal Devices

3. What is Apple FaceTime?

4. FaceTime Video Chat service for iPhone 4 (& iPod Touch) Requires no registration or sign-in Free IP-based service Runs only over WiFi Based on open standards Closed, proprietary service

5. FaceTime “Magic” Initial binding of phone to its number on Apple servers done using SMS Call initiation done using proprietary Apple Push Notification Server “Standard” SIP is used to negotiate call capabilities HTTP and TLS used to authenticate certificates RTP used to send media

6. FaceTime Advantages: User Experience No installation No need for an additional user account Seamless part of phone services Video quality better than 3G

7. FaceTime Disadvantages: Closed System iPhone4-to-iPhone4 only WiFi only No presence indication Proprietary implementation

8. The Makeup of a Video Chat Service

9. It’s not just a video chat client

10. Signaling Finding available users Dialing Negotiating capabilities Opening media channels In-call commands Supplementary services

11. Media Processing Audio and video coding Media algorithms Real-time Bidirectional

12. Application Provide the user experience Synchronize media and signaling Enable configuration and management Allow service mash-ups

13. Service Provisioning Clients need servers Handle registrations Manage dial plans Enable firewall traversal Provide value added services Gatewaying across networks

14. Technology Routes

15. 3 Aspects of Mobile Video Calling Service User Experience Protocol Infrastructure

16. Which protocol?

17. User Experience

18. Infrastructure

19. Apple FaceTime Choice?

20. Video Chat and the Android OS

21. Android is Different Based on Linux An open source, modern OS Controlled & Governed by Google

22. Android Architecture

23. The Missing Link(s) Telephony Manager Contacts and Phone applications Front facing camera Connecting the low level with the applications Real-time, bidirectional media management

24. Delivering High Quality User Experience

25. Media is a lot more than just codecs (CC: http://www.wordle.net/)

26. Error Resiliency - RADVISION SVC Technology H.264/SVC H.264

27. Error Resiliency - RADVISION SVC Technology H.264/SVC H.264

28. Error Resiliency - RADVISION SVC Technology H.264/SVC H.264

29. Error Resiliency - RADVISION SVC Architecture Media Engine Video Quality Manager SDP Parser Retransmission Manager RX / TX Bandwidth Estimation Codecs Advanced-RTP H.264 Encoder (with TS) Forward Error Correction (RFC 5109 + Reed Solomon) H.264 Decoder (with TS) RTCP-FB (RFC 4585) RTCP-XR (RFC 3611)

30. Dealing with Packet Loss Receive video packets and show them

31. Got some packet loss? Time to reduce bitrate… Dealing with Packet Loss

32. Wouldn’t it be better if we could predict packet losses?

33. RADVISION NetSense Delay based bandwidth estimation Monitor delay for “trends” React accordingly Converge quickly to the effective bandwidth

34. NetSense convergence on available bandwidth NetSense reduces bandwidth before packet losses occur on the network, reducing video artifacts and increasing video quality

35. NetSense Comparison The higher the score, the better the quality The lower the latency, the better the quality

36. About RADVISION

37. A Global Market Leader Industry Leader in Video communications over IP products and technologies since 1992 First to market with VoIP technology solutions Annual Revenues in 2009 - $81 Million Strong Debt-free Balance Sheet with $126M in Cash Listed on NASDAQ:RVSN March 2000 440 Employees Worldwide 4 Major Development Sites 17 Sales and Support Offices 37

38. Two Complementary Business Units Technology Business Unit (TBU) Advanced HD Video Client Products and Frameworks Enabling Technology for Developers of Video and Voice over IP (V2oIP), 3G and IMS Client/Server solutions Market Share Leader in Protocol Stacks (H.323, SIP, IMS) Professional Services Group Video Business Unit (VBU) Video and Voice Conferencing Solutions for the Enterprise Market Infrastructure, Management Software and Endpoints

39. BEEHD Client Family of Products BEEHD for Desktop BEEHD for Enterprise BEEHD for Personal Devices BEEHDCore

40. BEEHD Complete HD Visual Communication Client Software Customer’s GUI Application Operating System and Hardware Platform

41. SW Architecture HD Camera Display Display Input Speakers Microphone Network

42. Android Architecture

43. Component customized by RADVISION Module provided by RADVISION Component provided by the vendor Component provided by third-party

44. Value Proposition Minimize time-to-market Superior media quality Interoperability across multiple platforms Designed and optimized for Android devices

45. More Information? BEEHD Product Page http://www.radvision.com/BEEHD/ How to Develop Hardware For an HD Endpoint? http://blog.radvision.com/howto-develop-hardware-for-hd-video/ SVC http://www.radvision.com/SVC/

46. Where to Find Us? Corporate site Community Blogs Newsletter twitter

47. Thank you! Amit Lavi Product Manager RADVISION amitl@radvision.com Tsahi Levent-Levi Director of Technology and Solution RADVISION Technology Business Unit tsahil@radvision.com