The document discusses adding VoIP capabilities to Windows CE and Windows Mobile devices. It describes the components needed for VoIP including a real-time communication client, audio codecs, IP phone design templates, and considerations around acoustic echo cancellation. It also outlines some VoIP applications currently available on the market and features Microsoft is investigating like video calling and wireless security.

1. EMB201 Building VoIP Enabled Windows CE And Windows Mobile Devices Michael Malueg Lead Program Manager Microsoft Corporation

3. M anagement T ools C ommunications & M essaging Device Update Agent Software Update Services Live Communications Server Exchange Server Internet Security and Acceleration Server Speech Server Image Update L ocation S ervices M ultimedia MapPoint DirectX Windows Media Visual Studio 2005 D evelopment T ools MFC 8.0, ATL 8.0 Win32 N ative M anaged S erver S ide L ightweight R elational SQL Server 2005 Express Edition EDB D ata P rogramming M odel D evice B uilding T ools H ardware/ D rivers Windows XP DDK Windows Embedded Studio Platform Builder OEM/IHV Supplied BSP (ARM, SH4, MIPS) OEM Hardware and Standard Drivers Standard PC Hardware and Drivers SQL Server 2005 SQL Server 2005 Mobile Edition ASP.NET Mobile Controls ASP.NET .NET Compact Framework .NET Framework Microsoft Operations Manager Systems Management Server

4. Enabling VoIP Agenda Windows CE 5.0 – Giving OEMs a head start Leveraging the existing IT infrastructure How to add VoIP to your platform VoIP Features - What’s ahead? Windows Mobile Developing a VoIP Application for Windows Mobile 3rd Party Solutions

5. VoIP – How It All Fits Together Live Communication Server - IM, Presence Voice Mail Exchange SIP Proxy Traditional Office SIP PBX PSTN VoIP Gateway SMS Internet Contacts, Global Address List, & Free Busy IP PBX ADAM Active Directory Automatic Provisioning Device Management DC Enter & Verify Credentials

6. VoIP – How It Looks Today VoIP – In The Next 2-3 Years PSTN Internet Telcos and Cable Operators Cellular Exchange Voice Mail IM & Presence Billing ISP Phone Gateways

7. VoIP Architecture

8. Audio Codecs Pluggable Codec model using Acoustic Compression Manager Not shipping G.729 or G.723

9. IP Phone Design Template

11. User Experience Customizable UI showcasing phone features Integration with Outlook Contacts and Exchange Global Address List Presence Rich Caller-ID Provided in source code for easy extensibility Modeless UI providing quick access to key features

13. Additional Considerations Acoustic Echo Cancellation Implement in the WAV Driver RTC 1.2 is “SIP” compliant but… Its really a communications client that uses SIP Not up-to-date with the latest RFCs Not extensible Challenging to do video calls with CE 5.0 Getting video data from the camera into the system RTC 1.2 doesn’t handle video data Should handle audio and video in the same process However, several OEMs are doing it today 

14. Devices In The Market Today Wooksung WVP-3000 NetSys Inter-tel Net-2Com / Fujitsu Atrium ZTE RvTec Atrium

15. Investigating VoIP Features New Real Time Communications Client Up to date SIP Compliance (3261+) Extensible Video 1:n Video Capability QCIF resolution (176 x 144) Audio Multi-party Audio (3-way) calling Push To Talk application Wireless 802.11i Security Packet tagging for QoS Working towards fast AP handoff

16. Enabling VoIP Agenda Windows CE 5.0 – Giving OEMs a head start Leveraging the existing IT infrastructure How to add VoIP to your platform VoIP Features – What’s ahead? Windows Mobile Developing a VoIP Application for Windows Mobile 3rd Party Solutions

17. Phone Architecture With VoIP

18. Adding A VoIP Application Real Time Communication Client - Catalog Add rtcclient.dll, httplite.dll, dxmrtp.dll + registry keys VAIL voipmgr, voipmediamgr, voipstore, voipconfigurationdatastore Codecs Use the G.711 codec built into RTC Acoustic Echo Cancellation Nice to have, but the device could require a headset Low latency audio driver Small DMA controller buffer size (~packet size [20ms]) Traditionally optimized for power/music (500 ms) Network Connectivity SD I/O or CF expansion cards Dialer Application Call logs, Speed Dial, Contacts, etc.

19. Potential Issues For An ISV Audio latency could make for a sub-optimal experience Battery life will be about ½ of what it was before WLAN Waking up a PPC PC to answer an incoming call Dependent on OEM implementation of the drivers Firewall/port blocking in the enterprise

20. SJPhone by SJLabs Pros Dynamic Codecs Call Screening Incoming Call Conf. Call Skins Dial Pad

21. Skype Pros Excellent Audio Service Provider Start Tab Active Call Phone Book Dial Pad

22. GPhone by VL Inc. Pros Voice Messaging Good UI Buddy Screen Incoming Call Contact List Place a Call

23. VoIP Summary Windows CE 5.0 makes it easy to add VoIP to devices Lots of infrastructure required to make it work well Several 3rd parties offering solutions for Mobile Devices Windows CE is investing in new, key features such as video and WLAN Looking to add VoIP capability to Windows Mobile Enterprise Mobile Instant Messaging – ENT308 Wednesday – 11:30 Bogdan-George Pintea

24. While at MEDC 2005… Fill out an evaluation for this session Randomly selected instant WIN prizes! Use real technology in a lab Instructor led Reef E/F & Breakers L Self-paced Reef B/C Visit the Microsoft Product Pavilion in the Exhibit Hall Shorelines B

25. After The Conference… Develop Build Install Build Join Install Enter Join Full-featured trial versions of Windows CE and/or Windows XP Embedded Cool stuff & tell us about it: msdn.microsoft.com /embedded/community Windows Embedded Partner Program: www.mswep.com Windows Mobile 5.0 Eval Kit including Visual Studio 2005 Beta 2 Mobile2Market Contest and win up to $25000: mobile2marketcontest.com Microsoft Solutions Partner Program: partner.microsoft.com

26. Tools & Resources msdn.microsoft.com/ embedded microsoft.public. windowsxp.embedded windowsce.platbuilder windowsce.embedded.vc blogs.msdn.com/ mikehall Windows CE 5.0 Eval Kit Windows XP Embedded Eval Kit msdn.microsoft.com/ mobility microsoft.public. pocketpc.developer smartphone.developer dotnet.framework.compactframework blogs.msdn.com/ windowsmobile vsdteam netcfteam Windows Mobile 5.0 Eval Kit Websites Newsgroups Blogs Tools Build Develop

27. © 2005 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.