1. ITU/CoE Workshop Muscat 3 May 2004 IP Multimedia Subsystem (IMS) Pushing New Services Samer Qablawi Technical Solutions Consultant Siemens Middle East

2. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 2 IMS - What are we talking about ? IMS is a standardized IP control Domain for new MM services IMS has been standardized by 3GPP in R5 (June 2002) IMS enables peer to peer multimedia communication over Packet Networks It uses SIP the protocol of choice for IP-based service control It provides MM call control completing GPRS and UMTS infrastructure

3. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 3 Why SIP is the Protocol of Choice for Multimedia Some SIP basics (Session Initiation Protocol) SIP is standardised by IETF for VoIP and Multimedia Succesor for ITUs H.323 (VoIP) IP based Protocol ( Sign. over UDP or TCP ) SIP is text based, very flexible and simple Only 7 types of messages (methods) Same session setup for all medias (different codecs) SDP (session description protocol – capability negotiation) Always included in SIP Easy handling of different media streams (QoS) 3GPP defined extensions for IETF SIP Optimized Reference Architecture SIP Header Extensions Better QoS, Security and Charging features

4. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 4 Comparison of IETF and 3GPP SIP Target: The best of two worlds (IT and Telco) IETF IETF defines lots of protocols Internet paradigm Endpoint centric Security becomes more important Charging is of minor importance (flat rate) 3GPP Defines an architecture which uses protocols Operator paradigm Core network centric Security is one of the most important topics Charging is one of the most important topics IETF SIP3GPP SIP SIP Only a few 3GPP specific headers remain Most of the SIP protocol is generic

5. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 5 Status of IMS in 3GPP 3GPP Rel. 5 Specs were finished in 05/2002 Stage 1 & 2 standards: requirements and functional architecture, basic features Enhanced features --> Rel’6 3GPP Rel. 6 Specs were finished in 09/2003 PSTN interworking: MGCF, MGW WLAN access, Conferencing (MRF) 2002 2003 2004 Rel 6 Rel 5 Scheduling of 3GPP Releases

6. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 6 Reduce OPEX and CAPEX IMS is an access-independent Service Delivery Platform Enables Operators to have one homogeneous service platform for all packet based access networks (OPEX & CAPEX savings!) Enables service interworking between different access technologies

7. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 7 IMS enables new Types and Mixes of Services And this is what Users expect  Non-realtime and near-realtime services  Presence  Instant Messaging  Chat  Push to Talk (PoC)  Multimedia Messaging  Enhanced CLI  Push Services  Realtime services  Video telephony  “Rich” Voice (over IP)  Multimedia Conferencing  Video Audio/Streaming  Broadcasting IMS enables “new” types of services: IMS also enables the ability to bundle realtime and non-realtime services:  Click to dial scenarios  Presence-enabled Conferencing  Mobile Gaming with Voice  Presence and Location based Push Services  Video streaming with integrated voice And the Possibility of Combining:

8. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 8 IMS – Pushing New Services New multimedia services Communication Information Entertainment Info Channel Information Sharing Interactive guidance Collaborative working Photo Share Push-to-Flirt/-Show Person-to-Person Gaming Audio and Video Streaming Push to talk over Cellular Instant Messaging Picture Chat Multimedia Conferencing Multi-Media Multi-User Multi-Session

9. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 9 From “Voice & Data” to “Multimedia ” Impact on Average Revenue per User (ARPU) ARPU, CAPEX 100 % 0 % Voice Data Multimedia New class of services Pure Voice ARPU is falling due to strong Competition Data ARPU is climbing constantly Multimedia ARPU will boost Mobile Revenues

10. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 10 IMS – Pushing New Services Lifestyle users’ acceptance of mobile services N=372 102030405060708090100 Interactive Gaming Download Browsing Info Sharing Video Telephony % of respondents Voice Conferencing MMS PoC SMS Voice Calls Willingness to use different existing and coming services in the future Classic Voice Multimedia Messaging Infotainment Push-to-Watch monthlyweeklydaily German -consumer- Source: User Survey, Germany, May 2003

11. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 11 Operator Benefits Survey on willingness to pay Source: User Survey, Germany, May 2003 Average total monthly bill: € 50 57% Voice 11% Push-to-Talk 5% Video Telephony 21% Messaging (MMS, SMS, IM…) 19% Multimedia 3% Browsing&Download N=349 average monthly bill “2005” 0% 20% 40% 60% 80% 100% Average split of the monthly bill Tomorrow (2005)Today Average total monthly bill: €41,5 N=306 0% 20% 40% 60% 80% 100% average monthly bill Average split of the monthly bill 73% Voice 27% Data Germany

12. Push to talk over Cellular (PoC)

13. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 13 IMS – Pushing New Services Push to talk over Mobile Networks Innovative Voice over IP communication for mobile users… Select from buddy list with presence information Push one key to talk … … release key to listen (Walkie-Talkie) Group talk Global reach Available on mobile phone … based on innovative technologies Usage of UMTS defined IP Multi media System Deployment already in GSM/GPRS networks Combination of mobile phone and network know- how for the end-to-end solution Solution Description

14. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 14 Push-to-Talk over Cellular: Step-by-Step Mona Lisa starts the PoC application 1 1. Starts Push-to-Talk over Cellular Mona Lisa

15. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 15 Push-to-Talk over Cellular: Step-by-Step Mona Lisa selects her buddies 2 2. Selects A. Einstein & C. Columbus out of buddy list Mona Lisa

16. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 16 Push-to-Talk over Cellular: Step-by-Step Mona Lisa invites for a PoC Session 3+4 3. Has invited for a PoC Session & Waiting for response Mona Lisa Receives Invitation Albert EinsteinC. Columbus Receives Invitation

17. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 17 Push-to-Talk over Cellular: Step-by-Step List of PoC Participants 5 Mona Lisa Albert EinsteinC. Columbus

18. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 18 Push-to-Talk over Cellular: Step-by-Step Mona Lisa asks question to group 6 6. Pushes button and asks: “What are our plans for tonight ?” Mona Lisa C. ColumbusAlbert Einstein Receives Question “What are our plans for tonight?” Receives Question What are our plans for tonight?”

19. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 19 Push-to-Talk over Cellular: Step-by-Step Albert Einstein answers 7 Mona Lisa C. Columbus 7. Pushes button and answers: ‘I would like to go to the movie theater.’ Albert Einstein Receives Answer ‘I would like to go to the movie theater.’

20. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 20 Push-to-Talk over Cellular: Step-by-Step Chris answers 8 Mona Lisa C. ColumbusAlbert Einstein ‘Good idea, I will be there at 8 pm.’ 7. Pushes button and answers: ‘Good idea, I will be there at 8 pm.’ Receives Answer ‘Good idea, I will be there at 8 pm.’

21. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 21 Push-to-Talk over Cellular: Step-by-Step Mona Lisa confirms and closes PoC session 9 3. Pushes button and talks: “OK! C U there! I’m out now.” Mona Lisa C. ColumbusAlbert Einstein Receives Answer “OK! C U there! I’m out now.” “OK! C U there! I’m out now.”

22. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 22  Push-to-talk enables instantaneous half-duplex voice communications  1-to-many (voice message distribution)  1-to-1 (“walkie talkie” service; a special case of 1-to-many model)  Many-to-many (conferencing service)  Nextel’s success with Push-to-talk has lead to a market pressure in the U.S. Other operators now want to copy Nextel‘s business model. IMS – Pushing New Services Summary of PoC

23. Picture Chat

24. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 24 IMS – Pushing New Services Short description of Picture Chat Picture Chat allows subscribers to exchange short messages containing text, picture, clip arts or any combination of them Picture Chat application combines capabilities of IMS-based Presence and Chat and the Camera Function of your mobile device Picture Chat application can be used parallel to other applications (like game session)

25. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 25 Picture Chat: Step-by-Step Starting IMS (1) 1. Start IMS Galileo

26. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 26 Picture Chat: Step-by-Step Selection of Chat Partner (2) 1. Start IMS 2. Select Chat Partner Galileo

27. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 27 Picture Chat: Step-by-Step Invitation for a Chat (3) 1. Start IMS 2. Select Chat Partner 3. Invite Partner 1. Invitation GalileoMona Lisa

28. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 28 Picture Chat: Step-by-Step Chatting with Partner (4) GalileoMona Lisa 1. Start IMS 2. Select Chat Partner 3. Invite Partner 4. Chat with Partner 2. Chat with Partner

29. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 29 Picture Chat: Step-by-Step Starting Reversi \\ Select Camera (5) 1. Start IMS 2. Select Chat Partner 3. Invite Partner 3. Activate Camera 4. Chat with Partner 5. Start Reversi GalileoMona Lisa

30. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 30 Picture Chat: Step-by-Step Invite Game Partner \\ Take Picture (6) 1. Start IMS 2. Select Chat Partner 3. Invite Chat Partner 4. Take Picture 4. Chat with Partner 5. Select Reversi 6. Invite Game Partner Einstein 1. Invitation photo GalileoMona Lisa

31. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 31 Picture Chat: Step-by-Step Play Game \\ Add Effects (7) 1. Start IMS 2. Select Chat Partner 3. Invite Chat Partner 5. Add text 4. Chat with Partner 5. Select Reversi 6. Invite Game Partner 2. Play Reversi 7. Play Reversi Mona Lisa Einstein

32. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 32 Picture Chat: Step-by-Step Picture Chat \\ Play Game (8) 1. Start IMS 2. Select Chat Partner 3. Invite Chat Partner 6. List of pictures 4. Chat with Partner 5. Select Reversi 6. Invite Game Partner 3. Play Reversie 7. Play Reversi 8. Receive Picture & Play Reversi Mona Lisa Einstein

33. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 33 IMS – Pushing New Services Use cases of Picture Chat Business Users You are preparing a product presentation at your customers’ site. An important question is coming up… There is a “chat forum” where those of your colleagues occupied with the product share their knowledge. Ask them! The answer comes immediately including a photo of your product … Fast resolution of your problem, and your presentation will be a success! Consumers Commuting to school. Every morning you sit in the train on your way to school and you use the time chatting with your friends Your buddy Brian could not make it through his maths homework. You have a great idea: You will just make a photo of your results and pass it to him! Source: Siemens ICM N M P, March 2003

34. Other Use Cases of IMS

35. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 35 IMS – Pushing New Services Ideas of bundled PoC applications Enhancement of Push to talk over Cellular by bundling with  Presence / Location > All contacts at a glance with one single Buddy-List > Information of the availability of the contacts/buddies including terminal capabilities & preferences, moods and locations  Chatting/ Messaging > Creation of a common communication portal with text and voice based communication applications  Photo Shots & Video Streams > During a PoC conversation, instant picture shots or short video clips can be streamed to the other party, by simply pressing a button

36. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 36 IMS – Pushing New Services Use cases of bundled PoC applications PoC_Presence& Location PoC_Chat PoC_Push-to-Watch You have a PoC Session with your buddies and during this session you want to show them where you are. Push-to-watch and pictures of you and your surrounding will instantly be streamed to your friend while talking! During an ongoing PoC session you want to inform one of your buddies about an important aspect - in private -: Invite him for a chat! You initiate a PoC session with your team asking for important information: one of them will answer by PoC_Call (voice based) and another by PoC_Chat (text based)

37. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 37 IMS – Pushing New Services Short description of Video Telephony Video Telephony  enables you to a more natural form of communication  gives you the opportunity to talk and to see your partner (& its surrounding) during your conversation in real- time  has a camera function, which can be flexibly switched on/off  can be enhanced with Presence, Conferencing, Collaboration tools like document sharing, etc. 93% of communication is what we see

38. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 38 IMS – Pushing New Services Use cases of Video Telephony Share a moment with family/friends: “Hi Brian, I would like to show you where I am right now! Families living apart – Dad is on a lot of business trips, but still wants to see his kids; and they want to see, where he is. Surveillance: Baby-phone: “How is my baby doing?” On vacation: “Is everything o.k. at home?” Remote Diagnostics for medicine, technical experts, car repair, etc.

39. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 39 IMS – Pushing New Services Short description of Information Sharing Display Sharing > Share the view: You able to see what is on my screen > With two options: You can/ cannot save,what you see. Remote Guidance > Guide through it: You will guide me through the information, which is on my (and also your) screen. Application Sharing > Joint work:Both parties work on one file simultaneously. Both parties are able to modify the file. Bundling with other applications > Multi-Service Bundling: Look on it! Work on it! Talk about it!

40. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 40 You told me, how easy it is to make a reservation via mobile. But I can’t make it: You guide me through the service – Remotely, because you are not in Cannes right now. IMS – Pushing New Services Use cases of Information Sharing Display Sharing Remote Guidance Application Sharing You are sitting at the airport waiting for your flight to take off and have been working on a presentation. You would like to get a feedback from a colleague in the office. Show him your slides! Jointly looking at your slides, you can discuss which aspects you could change. bundled with voice application ‘Just take a look on the last email I have received …’ ‘OK, I will show you a photo of my new baby born. Let’s have a look at my screen …’

41. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 41 Conclusions for IMS Todays mobile networks lack some functionalities  This gap is filled by IMS IMS provides a 3GPP standardised infrastructure for an efficient deployment of numerous multimedia services IMS enables peer2peer communication in the ps domain IMS provides an efficient multimedia oriented session control IMS keeps the value chain within operator’s network IMS comes with an state-of-the-art service creation concept IMS leverages the process of finding the UMTS killer application One IMS client supports all IMS services HSS MRF

42. © Siemens, 2004ITU/CoE Workshop 12/07/2001Page 42 IMS is reality … and we are looking into a bright future