Presentation of evolution towards UC (Unified Communications) - given on a talk at IT 360 Conference in Toronto (Apr. 2008)

1. Architectural Models of UC Ronald Gruia Principal Telecom Analyst - Emerging Communications © 2008 Frost & Sullivan. All rights reserved. This document contains highly confidential information and is the sole property of Frost & Sullivan. No part of it may be circulated, quoted, copied or otherwise reproduced without the written approval of Frost & Sullivan. Toronto, April 7 th , 2008

3. 1. Current State of the Market & UC Definition

6. Current State of Market Need to Simplify Communications and Collaboration

8. The Unified Conferencing and Collaboration Paradigm “ Less is More”

10. Elements Leveraged by the UC Framework Source : Frost & Sullivan (Manoj Menon - Presentation Sep. 2007)

11. 2. Current UC Architecture Overview

17. Situation Analysis – On Premise Software Vs. Services Source : Frost & Sullivan

19. 3. IMS Architecture Concept Applied to the Enterprise

20. Defining IMS in Layman’s Terms Josef’s moustache and Leonid’s eyebrows represent the same line of hair, except the latter is vertically shifted upwards… That sounds a lot like a computer scientist’s solution to a problem: redefine it to a higher layer of abstraction! (the abstraction in this case is the “horizontalization” of common functions that can be re-used with IMS).

22. IMS: A More Efficient Service Implementation Source : Frost & Sullivan

25. Applying IMS Architecture to the Enterprise Control Plane Application Layer Transport Layer Application Servers (AS) Call Session Control Function (CSCF) Home Subscriber Server (HSS) PSTN and IP Networks Media Gateways Media Resource Function (MRF)

26. Applying IMS Architecture to the Enterprise (Cont’d) Control Plane Application Layer Transport Layer Home Subscriber Server (HSS) Application Servers (AS) PSTN and IP Networks Media Gateways Media Resource Function (MRF) Enterprise Call Management Server Enterprise Directory (LDAP) Audio Bridge Video MCU Enterprise WAN Carrier MPLS Legacy PSTN & ISDN Media Gateways Call Session Control Function (CSCF) Access Layer Messaging / Presence Voice, video, and web conferencing Mobile Multi-media Unified Communications

28. 4. Future Trends

30. Enterprise Perspective of What the Future Will Look Like Source : Frost & Sullivan

33. 5. Conclusions

36. Evolution of the Business Case for UC End-user Value Creation Tactical Strategic

37. UC: Changing the Way Enterprises Conduct Business “ Introducing new technology alone is never enough. The big spurts in productivity come when a new technology is combined with new ways of doing business .” Thomas Friedman – “The World is Flat”

38. Q & A Session Ronald F. Gruia Program Leader, Principal Analyst – Emerging Telecoms  rgruia@frost.com  416-490-0493 Thank You

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