1. IP Communications Services Redefining Communications Teresa Hastings Director WorldCom SIP Services Conference – April 18-20, 2001

2. Chat Impact of the Web Information Messaging What’s Missing? Transactions

3. Communications!

4. Source: Telegeography, Inc. 2000 Why is it time to Redefine Communications?

5. Source: Telegeography, Inc. 2000 Price Per Minute (US$) 1.16 0.74 19891998 Why is it time to Redefine Communications?

6. Today’s PSTN / IN Call Features Control Matrix Switch PBX...... PSTN Call Features Control Matrix Switch IN Features The IN was invented to take the service features out of the switch and under control of the carrier

7. Softswitch Architecture A Re-creation of Telephony Services PBX...... Media Gateway Something? IP Network Packetize Voice Features Control Packetize Voice Media Gateway Softswitch Features Control Focus: New Footprint/Old Services SIP, BICC, H.323 Softswitch is actually one step back to before the IN, since features are back in the “switch”

8. Protocols Define the Architecture Not Vendors  IP and UDP or TCP - Transport  RTP and RTCP - Real Time Media  IPSec and PKI - Security  SIP and SDP - Session Control  HTTP - Web Services  XML - Data Exchange Format  etc, etc, etc

9. Why Does it Matter?  Innovation for New Revenue Streams  Time to Market! –Reduced Integration Time and Complexity OSS and Service Integration Service Interaction –“Best of Breed” integration In-House Development Application Developers 3rd Party Service Providers  Device Independent Services  Manageable Support Costs –Re-usable and Lower Cost Tools –Web technical support skills

10. One Global Service Architecture 3 rd Party ASP Enterprise Network... PSTN Internet Protocol Network QOSSecurity Access Policies Directory Services Mobility OSS Routing Conferencing Centrex Messaging Web Servers Market Applications Content Management Commerce Services Presence Speech Recognition

11. Telephony Services  IntraEnterprise Calling  Private numbering plans –Call routing decisions in the SIP Server –Reduces management in enterprise gateways  Off-net calling (Enterprise to PSTN)  Call Management Services (“Centrex”) –Call Screening and Blocking –Find-me calendar routing –Call Forwarding - Unconditional, Busy, No-Answer –Alias called phone numbers/IP Addresses –Non-trusted caller permissions  IP Phones

12. SIP Phones …and many other SIP phones and clients… Are true Internet hosts  Choice of application  Choice of server  IP appliances  Freedom of movement

13. SIP User Preferences Caller –Choice of service –Choice of language –Choice of media Text, voice, data, video –Choice of my contact list Where can I be reached –Choice of called party With who will accept to talk to –Choices for privacy Location, signaling and conversation Called –By caller list –By zone of origin –By time of day –Where to receive calls Phones, PCs, Palms, pager, fax, voice mail, e-mail, in conference –Privacy options Location, signaling and conversation Under user control, Via web or voice, PC, Palm computer or voice command

14. Presence Mobility Telephony Services IVR Web Servers Market Applications Content Management Commerce Services 3 rd Party ASP Enterprise Network... PSTN ConferencingMessaging Directory Services OSS Routing Centrex Internet Protocol Network SecurityQOS Access Policies

15. SIP-Enabled Mobility Sarah@sip.wcom.com Sarah@pdanet.com Sarah@wirelessnet.com Sarah@engineering.wcom.com Sarah@wcom.com tel:+1-123-346-7890@mobile.com

16. Messaging  Voice, email, fax, IM, video, paging  Device Aware  “Intentional Messaging”  Directory  Personal address and contact lists  Calendar

17. Conferencing: Endpoint Hosted GATEWAY ENDPOINT INITIATES CONFERENCE AND ACTS AS MEDIA MIXER PSTN Instant conferencing Endpoint “self-hosts” small conferences

18. Conferencing: Multi-point Bridge GATEWAY CONFERENCE BRIDGE PSTN 1. INITIAL POINT-TO- POINT 2. MULTIPOINT “On the Fly” Transition from point-to-point conference to multi-point bridge

19. Presence  Reach anywhere  Announce availability  Preferences  SIP-based component –Register –Subscribe –Notify

20. New Services Based on Presence  Polite calls are possible: –Is user online (for me)? –Willing to take calls? –In another call? –May I join?  Avoid unsuccessful calls –Location independence  Conferencing is changed –Spectrum: Ad-hoc to scheduled  Replaces call center ACD!  Any media: –Text, voice, video, data

21. Communications Services Web Servers Market Applications Content Management Commerce Services 3 rd Party ASP Enterprise Network... PSTN Directory Services OSS Routing Centrex Internet Protocol Network QOSSecurity Access Policies Presence IVR ConferencingMessaging Mobility

22. Application Services Real businesses solving real problems with useful tools  Web Interaction Centers  Technical Support  Healthcare/Medical  Education/Training  Business to Employee  Vertical Industries of All Types

23. Application Services 3 rd Party ASP Enterprise Network... PSTN Internet Protocol Network QOSSecurity Access Policies Presence Mobility IVR Web Servers Market Applications Content Management Commerce Services Messaging Directory Services OSS Routing Centrex Conferencing

24. Where can we go? Consumer Small office Home office Small-Medium enterprise Global Enterprise Third World

25. What are the challenges?  Unwavering commitment to open standards  QoS  Security  Access complexity  SDKs - Service Development Kits  Conversion –More than analog to digital ?

26. The Impact of SIP  Integration of communications with information and transactions on the Web  Distributed, interoperable service architecture  Industry and corporate applications on standard service elements  Ultimate flexibility and mobility to make work and life more manageable

27. IP Communications Services Redefining Communications Teresa Hastings Teresa.Hastings@wcom.com