2. AUDIO, VIDEO, AND WEB CONFERENCING ARCHITECTURE AND EXPERIENCE Andrew Ehrensing Solution Architect Microsoft Corporation SESSION CODE: EXL201 (c) 2011 Microsoft. All rights reserved.

3. What you’ll learn today ► Deeper look at audio, video, and web conferencing workloads of the Lync 2010 client ► Conferencing Architecture, Call Flows, and Troubleshooting ► Details on Features, Requirements, Bandwidth ► Lync on-premise and Lync Online differences

4. Lync Conferencing Roadmap OCS 2007 R2 Communicator Audio Conferencing Desktop Sharing Live Meeting Audio conferencing Desktop & Application Sharing PowerPoint Presentations Whiteboard Polling, Q&A, etc. OCS 2007 R2 Communicator Audio Conferencing Desktop Sharing Live Meeting Audio conferencing Desktop & Application Sharing PowerPoint Presentations Whiteboard Polling, Q&A, etc. Lync 2010 Server Lync 2010 Richer Audio Conferencing Desktop & Application Sharing PowerPoint Presentations Whiteboard Polling Live Meeting Available during migration to 2010 Use for very large meetings Lync 2010 Server Lync 2010 Richer Audio Conferencing Desktop & Application Sharing PowerPoint Presentations Whiteboard Polling Live Meeting Available during migration to 2010 Use for very large meetings Lync Online / Office 365 Lync 2010 CU2+ Public Beta NOW General Availability in June OrgID sign-in Audio Conferencing Partners for PSTN Audio Not a soft phone Regular updates and improvements Live Meeting Separate Service only Lync Online / Office 365 Lync 2010 CU2+ Public Beta NOW General Availability in June OrgID sign-in Audio Conferencing Partners for PSTN Audio Not a soft phone Regular updates and improvements Live Meeting Separate Service only

5. Unified Client, Rich Conferencing Features Conference Management ► Scheduling via Outlook with admin support, and via Web* ► Join with Lync, Web App, Attendee clients ► Lobby support for easy join ► Manage permissions and roles Voice and Video ► PSTN Audio on premise with IVR ► Audio Partners (ACPs) in O365 ► Scalable Voice, Video ► Device/IP Phone support (on premise) ► Response Group, Private Line, Call Park ► >90% VoiceCon RFP complete ► Up from 60% in 2007, 78% in 2009 Basics ► Presence/discovery integration ► Rich IM with federation ► Interop with Communicator, Messenger for AV, IM with public internet connectivity * WL Messenger only with O365 ► Ad hoc conference escalation Content ► Desktop sharing ► Application sharing ► PowerPoint with animations ► Whiteboarding ► Polling ► Navigate ahead/back in slides and to other content

6. END TO END WEB CONFERENCING USER EXPERIENCE DEMO ► Ad-hoc conferencing from IM and Phone ► Scheduling, Join, In-meeting experience

7. Conferencing Scenarios Rich conference callsWork with people anywhere Effective Team MeetingsProfessional Presentations

8. ARCHITECTURE/FLOWS

9. Front End Server Web Conferencing Architecture Backend SQL DB Server AV Conferencing Server Conferencing Database Conferencing Database Focus Focus Factory Web Components (IIS) Join Launcher Web App Server IM Conferencing MCU Web Conferencing MCU App Sharing MCU AV MCU Machine Boundary Process BoundaryWeb ApplicationAudio Conferencing Conference Service Personal Virtual Assistant Group Virtual Assistant Audio Conf Provider MCU

10. Web Conferencing Flow FocusFocus CommunicatorClientCommunicatorClient CCCP/SIP Web Conf MCU IM Conf MCU AV Conf MCU C3P/HTTP SIMPLE/SIP ( S)RTP PSOM Focus Factory SQL Backend SchedulingClientSchedulingClient CCCP/SIP SQL Conferencing Server Factory C3P/HTTP 1 1 2 2 3 3 4 4 5 5 6 6 7 7 App Sharing Conf MCU RDP/RTP Audio Conf ProviderMCU ProviderMCUACPACP ( S)RTP

11. CLIENT DETAILS/REQS

12. Join Details Lync ClientLync Attendee ClientLync Web App Admin Install IT Push, or admin install Yes, for Silverlight Also, ActiveX or FF Plugin for screen sharing User mode Install n/aYesn/a Silverlight Yes, installs with client Yes, can install on the fly On 67% of desktops WW* OS Requirements XPSP3, Vista, Win7, 2K8 IT Push XP, Vista, Win7, 2K8, 2K3 Mac 10.4.8 Browser IE6-9, FF IE6-9 based on Win OS Mac 10.4.8 with FF, Safari

13. Conferencing Support in Lync 2010 clients Feature/capabilityLync 2010Lync Web App Lync 2010 Attendee Lync 2010 Attendant Lync 2010 Phone Edition Communicator for Mac 2011 Computer audio●●●●● Video●●● In-meeting presenter controls●●● Access detailed meeting roster●●●● Participate in multiparty IM●●●●● Share the desktop● ● (requires plug-in) ●● Share a program● ● (requires plug-in) ● Add anonymous participants●●● Use dial-in audio conferencing●●●● Initiate a meeting● Present PowerPoint●● Use a whiteboard●●● Conduct polls●●● Share files●●● Schedule meeting/conference● ResKit

14. Video – Supported Formats Display Resolution1024x768 or higher required MemoryWindows 7 or Windows Vista: 2 gigabytes (GB) of RAM Windows XP: 1 GB of RAM Video Memory128 MB of Video RAM DirectX® 9 CIF Common Interchange Format 352x288, 15 fps, 350 kbps Single Core > 1.5GHz CIF Common Interchange Format 352x288, 15 fps, 350 kbps Single Core > 1.5GHz VGA Video Graphics Array 640x480, 25 fps, 700 kbps Dual Core > 1.9GHz VGA Video Graphics Array 640x480, 25 fps, 700 kbps Dual Core > 1.9GHz HD High Definition 1280x720(16:9), 25 fps, 1.5 Mbps Quad Core > 2 GHz HD High Definition 1280x720(16:9), 25 fps, 1.5 Mbps Quad Core > 2 GHz Panorama Polycom CX5000 RoundTable 1056x144 (22:3), 15 fps, 350 kbps Single Core > 2 GHz Panorama Polycom CX5000 RoundTable 1056x144 (22:3), 15 fps, 350 kbps Single Core > 2 GHz

15. VoIP and Video – Bandwidth Requirements Audio codecScenarios Audio payload bitrate (Kbps) RTAudio WidebandPeer-to-peer29.0 RTAudio Narrowband Peer-to-peer, PSTN 11.8 G.722Conferencing64.0 G.711PSTN64.0 SirenConferencing16.0 Video codecResolution Maximum bitrate (Kbps) Minimum bitrate (Kbps) RTVideoCIF25050 RTVideoVGA600350 RTVideoHD1500800 RTVideoPanoramic Video35050

16. CONFERENCING DETAILS

17. On-premise Audio Conferencing ► Replaces ACP for ~85% of calls (Gartner) ► Requires PSTN Gateway deployment on premise ► Features – Name Recording, Entry/Exit announcements (default OFF) – Supports Lobby for easy join (Presenters grant access) – Easy PIN management, default no expiry – Recording from Lync client – Rich language support for IVR ► Per-pool Limits (10 FEs/pool):80K users/pool, max mtg:250 ► Limit of 6000 simultaneous users per pool: – 900 PSTN-only meetings, 2100 in VoIP-only, 2400 mixed

18. Online (ACP) Audio Conferencing ► Sign up with an ACP partner – Initially British Telecom, InterCall, Premier Global ► Integrates automatically with VoIP users via VoIP bridge ► Features – Dial-in from phone (details in invite, and conversation window) – Dial-out to self and others via ACP – Mute individuals from Lync – Eject individuals from Lync – End conference (ends for all Lync and PSTN users) – DTMF tones via ACP for Mute, Unmute

19. Web Conferencing ► Scale to 250 users per meeting ► Screen sharing (256, 1000, 3500 kbps) – Supports P2P to reduce server traffic – Share Desktop, single app, multiple apps – Controllable via in-band policy settings ► PowerPoint (20, 200, 500 kbps) – Converts to PPT 2003 and DHTML (web app), removes AV – Rich transitions, asynchronous navigation ► Whiteboard/PPT Annotations (20, 200, 500 kbps) – Text support for note taking, clipboard support, images

20. MANAGEABILITY

21. Manageability ► Clients can now be managed using Lync Server Control Panel, the Windows PowerShell command-line interface, or both. Settings are sent to clients using in-band provisioning as opposed to group policies. In-band provisioning settings (Lync on- premise) Group Policy settings (Communicator 2007/R2) Single location, using a single user interfaceUse other IT groups to push GPOs Configured at the global, site, or tag level.Configured at global and user levels only Consistent for all users whether on-premise or remote Requires corp domain connection to get policies Settings take effect immediatelyRequires Windows login to refresh settings Improved client security – users cannot modify registry Malicious user can modify registry to override policies

22. Troubleshooting

23. Client Troubleshooting ► Call Quality Notifications to end user (next slides) ► Logging – Enabled/disabled by policy/in-band setting – User can turn on/off in Options dialog if no policy set – Written to %userprofile%/tracing – Tools to analyze logs ► Collect Logs – Packages logs into ZIP file with screen shot, voice sample – Enabled via regkey or policy/in-band setting – User sends to their IT admin on their own ► Call Detail Records & Reporting on Server (on- premise)

24. Call Quality Notifications Events and Measurements TypeEventDescriptionMeasurements - Thresholds NetworkNetwork Send QualityPacket loss & jitter on receive stream is severe and introducing distortions Jitter - Good 30ms Packet Loss - Good 7% Network Receive Quality Concealed packet ratio on send stream is severe and introducing distortions Concealed Packet Ratio - Good 3% Low BandwidthAvailable bandwidth is insufficient for acceptable voice/video experience Dynamic based on codec High LatencyNetwork latency is severe and preventing interactive communication RTT - Good 500ms MachineLow CPU cyclesInsufficient CPU for processing current modalities & apps, causing audio distortions. Flag the event when audio encoding/decoding engine isn't getting sufficient CPU cycles Remote User Low SNRPoor capture quality from remote user. Distortions from noise or user too far from mic. Flag if participant in the conference has a noisy environment EchoRemote user's device or setup is causing echo beyond the ability of the system to compensate. Flag if remote user (or participant in a conference) has a device setup that is injecting echo in the call

25. Call Quality Notifications (cont.) Events and Measurements TypeEventDescriptionMeasurements - Thresholds AudioEchoDevice or setup is causing echo beyond the ability of the system to compensate. Timestamp noise Dynamic & Adaptive NLP attenuation Post-AEC echo percentage Mic clipping due to far-end signal HowlingAudio feedback loop detected (caused by multiple endpoints sharing audio path). Check for howling/screeching from other endpoints in the room Capture Device Not Functioning Microphone currently used is not functioning correctly, causing one- way audio issues. Check capture buffer status Render Device Not Functioning Speaker currently used is not functioning correctly, causing one-way audio issues. Check render buffer status Render GlitchesSevere glitches in audio rendering, causing distortions. Can be caused by driver issues, DPC storm (drivers), high CPU usage. Look for glitches after adaptive render buffer Low SNRPoor capture quality. Distortions from noise or user too far from mike.Low SNR High absolute noise level after digital AGC Microphone Clipping User’s speech level is too high for the system to handle and is causing distortions. Microphone clipping during near end only portions Near End to Echo Ratio User’s speech is too low compared to the echo being captured, limits ability to interrupt a user. Reduce speaker volume or move closer to mic. Near-end to echo ratio Half Duplex ModeTo prevent echo, system enter half duplex mode (dynamic switching between render and capture streams), which limits ability to interrupt a user. Flag the event when device is in "voice switch" mode Multiple Audio Endpoints Multiple audio endpoints in the same session detected and the system has compensated by reducing render volume. Detect conference join tone in the room

26. CDR & Reporting improvements ► MS diagnostics aka “msdiags” included with all SIP 4xx, 5xx, 6xx, BYEs – ms-diagnostic: ;reason=“xxx”;description=“yyy”;source=“zzz” [;custom-param=“foo”] ► Msdiags are: – Specific – one error code per distinguishable failure case – Admin Friendly – They describe failure from end user point of view; not in terms of internal implementation details, use official product nomenclature for server names (no hex codes) – Actionable – Many msdiags contain troubleshooting steps – Categorized – Success, UnExpectedFailure, ExpectedFailure ► Greatly improved reliability reports on the monitoring server

27. Lync in Office 365

28. Online vs. On-premise Key Differences FeatureOn-premiseOffice 365 Sign InCorp credentials, or customOrgID (Live ID infrastructure) Audio ConferencingIncluded, PSTN GW neededVia ACP Lync as soft phoneYesNo Device integrationYesNo Skill Search with SP OnlineYesNo RecordingYesNo Group ChatYesNo Auth join in Attendee and Web AppYes (corp users ony)No Mute all attendees (audio conf)YesNo Attendant clientYesNo Virus/malware scanningYes (from partner)No (use client side scanning) IM ArchivingYesNo Exchange Unified MessagingYesNo Admin UIFull web/SL UXTenant admin UX, limited features Powershell supportYesNo Client version managementYesNo

29. Top 5 takeaways ► True Unified Client – One client for IM/P, Audio, Video, Web Conferencing – Easy tools to learn once ► Improved Meeting Join – Simple meeting links – Lobby for presenters to admit/reject attendees – Click-to-join from mobile phones ► PSTN Dial-In and Dial-out Conferencing – On premise replacement for most audio conferencing needs – Online ACP partnerships ► Call Quality Checks and Diagnostics – Network health indicator – Notifications for end user troubleshooting – Make a test call and check call quality – IT Tools to analyze issues/logs ► Office365 / Lync Online is ready for Beta now, Production in June

30. QUESTION & ANSWER SESSION (c) 2011 Microsoft. All rights reserved.

32. POLYCOM SOLUTIONS FOR MICROSOFT UNIFIED COMMUNICATIONS Michael McLean Sales Engineering Manager ANZ SESSION CODE: EXL201 (c) 2011 Microsoft. All rights reserved.

33. Polycom Solutions for Microsoft UC HDX family of video systems RPX, OTX, ATX for telepresence DMA Distributed Media Application Server RMX Real-time Media Conference Platform CX IP and USB desk and common area phones CX IP and USB Conference Room

34. RMX Integration with OCS/Lync Server ► Enables OCS/Lync clients to participate in RMX-based conferences ► Extends Continuous Presence to Communicator/Lync ► Provides interconnectivity between SIP clients and H.323 endpoints

35. MCU Comparison – Different by Design ► OCS/Lync MCU – Integrated into the desktop experience – Active speaker switching – Desktop-quality resolution ► RMX – Simultaneous integration capability – Numerous layout options – Supports everything from high definition through desktop resolution

36. ► CCCP Protocol – Signaling protocol used within SIP in multiparty calls – Developed for OCS, persists in OCS R2 and Lync – Polycom only supports CCCP with Lync ► HDX Support – Same as RTV ► Availability – Q2 Lync A/V MCU Integration

37. CONFERENCING THROUGH OUTLOOK USING PCO OR ONLINE MEETING

38. Using Outlook to Schedule a Video Meeting ► One click to add conferencing to a meeting ► Meshes with existing workflow ► No need to remember numbers or settings ► Fully customizable

39. HDX Smart Rooms ► Rooms now display daily calendar from Exchange ► Immediately know if room is available ► Enhances room experience ► Makes video more approachable ► Join a meeting with one click ► No more fumbling for numbers ► Reminders for upcoming meetings ► Easy to join from room system or software client

40. Using Outlook to Schedule Online Meeting ► One click to add conferencing to a meeting ► Meshes with existing workflow ► No need to remember numbers or settings ► Native Support using Lync MCU

41. Enrol in Microsoft Virtual Academy Today Why Enroll, other than it being free? The MVA helps improve your IT skill set and advance your career with a free, easy to access training portal that allows you to learn at your own pace, focusing on Microsoft technologies. What Do I get for enrolment? ► Free training to make you become the Cloud-Hero in my Organization ► Help mastering your Training Path and get the recognition ► Connect with other IT Pros and discuss The Cloud Where do I Enrol? www.microsoftvirtualacademy.com Then tell us what you think. TellTheDean@microsoft.com

42. © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. (c) 2011 Microsoft. All rights reserved.