Connectivity for Advanced VoIP and Integrated Communications

Slide 1:Connectivity for Advanced VoIP and Integrated Communications

National Internet2 DayMarch 18th, 2004 Ben Teitelbaum, Internet2<ben@internet2.edu>  For this and other talks... http://www.internet2.edu/~ben/talks.html Welcome. I�m Laurie Burns, etc. This is a combined session today, incorporating the Internet2 update with an update on the Quilt, the national organization of regional network aggregators. Jacqueline Brown, chair of the Quilt Executive Committee, will join us up here midway through the Internet2 overview to talk about the Quilt. I�m going to spend a few minutes giving you a general overview of Internet2 at this point in its progress, and then talk about what�s going on in the networking area. Jacqueline will follow me, and then you�ll hear from Renee Frost on security and middleware activities, and from Ted Hanss on applications activities. If I�ve timed things right we�ll have plenty of time at the end for your questions, although I�ll leave it up to the individual speakers to decide if they�d like to take questions as they go. Welcome. I�m Laurie Burns, etc. This is a combined session today, incorporating the Internet2 update with an update on the Quilt, the national organization of regional network aggregators. Jacqueline Brown, chair of the Quilt Executive Committee, will join us up here midway through the Internet2 overview to talk about the Quilt. I�m going to spend a few minutes giving you a general overview of Internet2 at this point in its progress, and then talk about what�s going on in the networking area. Jacqueline will follow me, and then you�ll hear from Renee Frost on security and middleware activities, and from Ted Hanss on applications activities. If I�ve timed things right we�ll have plenty of time at the end for your questions, although I�ll leave it up to the individual speakers to decide if they�d like to take questions as they go.

Slide 2:Personal Communications

Highest value applications are generic Email, telephone, postal mail Throughout the history of communications, generic person-to-person communications have dominated content distribution and domain-specific apps Voice The dominant real-time communications medium A "killer" network application for >100 years VoIP opens doors to make voice communications even more valuable It doesn't matter whether it's two teenagers gossiping or two Nobel-prize winning physicists "collaborating", a telephone call is a telephone call.It doesn't matter whether it's two teenagers gossiping or two Nobel-prize winning physicists "collaborating", a telephone call is a telephone call.

Slide 3:Long promised, but still inevitable Has happened in the core Happening now for residential / enterprise Drivers Cost, cost, cost, cost, cost Why have a giant switch, two networks, two staffs, etc.? Voice is just another network application Dampers QoS, 911, CALEA, USF, FUD Little user "pull"

Voice / Data Convergence

Slide 4:Replace or Displace? If voice is so important, why be satisfied with replacing plain-old telephone service (POTS)?! Users are already defecting to cellular, SMS, AIM, MSN Messenger, Yahoo!, etc. VoIP can be much better than POTS Potential dimensions of improvement Fidelity Privacy Addressing Mobility Media translation

Advanced Voice Survivability Integration with IM, video, etc. Presence "911++" Why else is voice a �killer app� Primary means of human communication High value per bitWhy else is voice a �killer app� Primary means of human communication High value per bit

Slide 5:Replace or Displace? If voice is so important, why be satisfied with replacing plain-old telephone service (POTS)? Users are already defecting to cellular, SMS, AIM, MSN Messenger, Yahoo!, etc. VoIP can be much better than POTS Potential dimensions of improvement Fidelity Privacy Addressing Mobility` Media translation

Advanced Voice Not covered here, but Internet2 projects in these areas exist Covered in this talk Survivability Integration with IM, video, etc. Presence "911++" Why else is voice a �killer app� Primary means of human communication High value per bitWhy else is voice a �killer app� Primary means of human communication High value per bit

Slide 6:Connectivity

"Paths in the snow" Don't predict how users will want to communicate Users are highly-motivated to communicate with each other and to innovate Connect them and watch what happens Witness: P2P file-sharing Network connectivity + middleware = P2P FS Similar potential for real-time apps We should get ahead of the curve this time and provide the enabling middleware ourselves

Slide 7:Connective Middleware

Stas: Why aren�t application �key� too? Without code, nothing will happen. Aren�t developers an important constituency?.Stas: Why aren�t application �key� too? Without code, nothing will happen. Aren�t developers an important constituency?.

Slide 8:Demographics ~3.8 million students (tech-savvy, talk a lot, adapt easily) And, by the way, they graduate (tech-transfer � la email) Institutional Commitments Internet2 members have committed to advance IP communications and promote collaborative apps Many are looking for ways to reverse eroding voice revenues Connectivity Great networking connectivity High-bandwidth, low-loss, low-jitter End-to-end transparency (few NATs) IPv6 and multicast too! Emerging middleware infrastructure for AuthN/Z Need to build on this to connect users with each other!

Internet2's Secret Sauce Steve: 4 million sounds about right. Laurie: Different back-of-the-envelope calculation arrived at 3.6 million Abilene-connected students. Mention middleware and cyber-security as examples of �higher-level connectivity�. 26% of college students use IM (twice the rate of average Internet users)* * The Internet Goes to College, Pew Internet and American Life Project report, Sept. 2002.Steve: 4 million sounds about right. Laurie: Different back-of-the-envelope calculation arrived at 3.6 million Abilene-connected students. Mention middleware and cyber-security as examples of �higher-level connectivity�. 26% of college students use IM (twice the rate of average Internet users)* * The Internet Goes to College, Pew Internet and American Life Project report, Sept. 2002.

Slide 10:SIP Signalling protocol for creating, modifying, and terminating real-time internet media sessions SIP (and its extensions) support traditional telephony features as well as instant messaging and presence Attributes Provides: user registration, call routing, setup, tear down, and redirection Makes heavy use of existing standards Easy and familiar feel (email-style headers, HTTP-style error codes, URL addresses) Signaling and media paths separate

SIP: Session Initiation Protocol (RFC 3261)

Slide 11:SIP Trapezoid

Proxy Registrar Proxy Registrar Bob's softphone Alice's hardphone Media (and subsequent signaling)

Slide 12:Vigorous standards activity SIP (core protocol and extensions) � SIPPING (applications) � SIMPLE (instant messaging and presence) � not just IETF, 3GPP too! Enthusiastic industry adoption Phones (Microsoft, Cisco, Pingtel, Snom, ...) Servers (Cisco, Microsoft, Broadsoft, ...) Conferencing (eDial, RADVision, ...) Services (Level3, WorldCom, Vonage, ...) Open source software Servers: SER (iptel.org) � VOCAL (vovida.org) Soft Phones: Linphone � KPhone

SIP Happens

Slide 13:Fearless Leader Dennis Baron <dbaron@mit.edu> Goals Grow number of SIP connected users Increase value proposition for end-user SIP adoption Promote convergence of voice and email identity Low entry-cost means for campuses to... Provide a useful service Start getting their feet wet with SIP Means �SIP.edu cookbook� available on web site Partnering with vendors (Cisco working with 6 schools)

SIP.edu

Slide 14:Addressing Users should not be burdened with device addresses, when it�s people they really care about Addresses should be mnemonic and empower enterprises to manage the identities of their users sip:ben@internet2.edu It�s time to put E.164 phonenumbers behind us! A.G. Bell did not say...

Remember: It's People We Are Connecting Nick: Sometimes what you care about are functions or roles. E.g. �info@internet2.edu� or �sales@example.com�. Quote was actually: �Mr. Watson � come here� I want to see you.� (March 10, 1876) Bell was in Boston when he said this, get the area code right! Perhaps animate joke.Nick: Sometimes what you care about are functions or roles. E.g. �info@internet2.edu� or �sales@example.com�. Quote was actually: �Mr. Watson � come here� I want to see you.� (March 10, 1876) Bell was in Boston when he said this, get the area code right! Perhaps animate joke.

Slide 15:SIP.edu Architecture (today)

Slide 16:SIP.edu Architecture (real soon)

Slide 17:SIP.edu Growth

Slide 18:Presence and Integrated Communications

Presence �Notification of events that facilitate communication� (Henning Schulzrinne) �On-line�, �Away�, �Idle�, �On phone�, �Out to lunch�, ... Back to the future? Remember: finger, write, who? Presence restores the sense of community that existed on timesharing systems Forward to the future! New standards for interoperability and scalability User-centric control of presence publication Richer state semantics and automatic triggers Stas: �Presence� is not a hot buzz word; I�ve been hearing it for years.Stas: �Presence� is not a hot buzz word; I�ve been hearing it for years.

Slide 19:Rich Presence Trials

Slide 20:Client Mockup

WaveThree Software and Columbia U. have provided clients (Session, SIPC) Others welcome! (client requirements doc on web)

Slide 21:Chairs Walt Magnussen <wmagnussen@ppfs4.tamu.edu> Mike Enyeart <enyeart@indiana.edu> Web site http://voip.internet2.edu/ Projects SIP.edu Voice Disaster Recovery H.323 VoIP Testbed

VoIP Working Group

Slide 22:Chair Jermey George <jeremy.george@yale.edu> Web site http://pic.internet2.edu/ Projects Rich Presence Trials Social Context Study Group

Presence and Integrated Communications Working Group