Fall IM2000 Industry Perspective Presence: The Best Thing that Ever Happened to Voice Jonathan Rosenberg Chief Scientist

Fall IM2000 Industry Perspective Voice over IP Today Toll-bypass Has Been the Primary Motivation Cheap long distance Service transparency Cost Differentials Are Rapidly Disappearing Long distance is now at 5 cents a minute Partial flat rate plans are being rolled out Canadian service providers have moved to a complete flat rate structure Service Transparency is Far Away QoS issues 911, 1000 features in the 5ESS Huge existing penetration of the phone in the US and worldwide

Fall IM2000 Industry Perspective The Question Of Customer Value If IP Telephony Service is Not Cheaper, Better or Different, Why Purchase It?

Fall IM2000 Industry Perspective The Answer IP Telephony Enables Innovative New Services Created by Combining Applications Web Chat Presence The Killer App for VoIP Lives Within These Combined Services

Fall IM2000 Industry Perspective Voice Voice + Web Voice + Web + Voice + Web + + Presence Combined Services Enable Service Provider Differentiation Integrating Applications Yields Exponential Services Growth Service Provider Differentiation Flows Naturally from this Applications Diversity Combined Services

Fall IM2000 Industry Perspective Presence as a Key Application Today, Presence is Just Online/Offline, Used for IM Tomorrow, Will Describe Much More Than Online/Offline Status P resence is the dynamically changing set of means, willingness, capabilities, characteristics and ability for users to communicate and interact with each other The Means VoIP IM Mobile phone PSTN phone Games

Fall IM2000 Industry Perspective Presence Tomorrow cont. Willingness Only if urgent Try mobile phone first, then business line Always send Capabilities and Characteristics Voic available Voice or video Mobile or fixed Support for multiple languages Secretary available Geographic locale

Fall IM2000 Industry Perspective Presence: The Best Thing that Could Happen to Voice Two Reasons Call completion Innovative Services Call Completion Problem A small fraction of calls result in useful conversations Busy No Answer Voic Assistants Call me back later Result is user frustration and no provider revenue

Fall IM2000 Industry Perspective Presence: The Best Thing that Could Happen to Voice cont. Solution Only call if I know where the called party is available, when they are available, and how they are available Presence conveys exactly this information Result: successful call completion rates can skyrocket! Services Presence is one of the key enablers Examples...

Fall IM2000 Industry Perspective Traffic Jam Alerts Uses Geographic Locale as Presence Component Mobile phone site location GPS Service Definition Turn on mobile phone in car As you drive, application server monitors location As you approach traffic, service will call you Voice response system reads out alternate route NOTIFY INVITE REGISTER Application Server Presence Server

Fall IM2000 Industry Perspective Remote Attendant Console Todays PBXs Let Attendant Know Who is on the Phone Many Limitations Difficult (or impossible) to configure which lines are monitored Attendant station must be on PBX Monitored users must be on PBX Big Idea Station status is just presence

Fall IM2000 Industry Perspective Remote Attendant Console cont. Service Description User can define groups of monitored stations for console Stations approve being added to console Monitored stations can be any device, anywhere, which supports presence Console can be anywhere Stations send NOTIFYs as state changes, updated on console

Fall IM2000 Industry Perspective Automatic Callback cont. Evolution Stage IV Media server introduced When originator and called party are online, application server connects originator to media server Media server asks user if he/she still wants to be connected If yes, user is connected to called party, otherwise not Online NOTIFY INVITE RTP Application Server Presence Server Media Server

Fall IM2000 Industry Perspective Auto Conference Problem: Tough to Get Busy People Into a Conference Call Solution: Use Presence to Create the Call When Everyone is Available! Procedure Enter addresses into a web form (1) Application subscribes to users (2) When all online, application calls each participant, calls a conference bridge, connects them together Presence HTTP SIP Calls Application Server Conference Server Presence Server

Fall IM2000 Industry Perspective How to achieve Combined Services? Create a network that integrates voice, video, IM and presence Real time communications are all inextricably linked together Example: IM filtering and Call Screening Example: CFNA to cell phone Session Initiation Protocol (SIP) is the foundation of voice and video on the Internet Our proposal: Use SIP as the basis for IM and presence as well PublicationInitiation Subscription Voice video Mobile IM NETWORK SAVINGS SERVICES SIMPLICITY Voice video Mobile IM Voice video Mobile IM

Fall IM2000 Industry Perspective Advantages of Using SIP for Presence and IM Unifies Major Communications Services Voice/video IM Presence Shared Databases Shared Proxies Shared Servers

Fall IM2000 Industry Perspective Conclusions New services are critical for service providers Combined services are the key Presence is the primary enabler of combined services SIP is the ideal vehicle for presence on the Internet

Fall IM2000 Industry Perspective Information Resource Jonathan Rosenberg