Principles, Systems and Applications of IP Telecommunications

July 19,20 2007
Columbia University

New York City
Pasted Graphicat&tPasted Graphicmusecurity-logo-editedacm48x47sigcomm-sig-logo

Conference Program

Some program highlights are: a stimulating technical program, Jeff Pulver as our lunchtime guest speaker on Day Two, Jonathan Rosenberg opening Day Two, an evening dinner and cruise, a panel discussion with broad representation from industry and academia, two tutorials, and a demos program. Hope to see you in New York in July!

Day One - July 19

Registration and Breakfast (outside Auditorium) 8:30 - 9:00

Welcome Note 9:00 - 9:15
Henning Schulzrinne (Columbia University)

Session 1: Securing IP-based Telecommunication Services 1
Holistic VoIP Intrusion Detection and Prevention System 9:15 -9:40
Mohamed Nassar (LORIA-INRIA Lorraine, FR); Saverio Niccolini (NEC Europe Ltd., DE); Radu State (LORIA, FR); Thilo Ewald (NEC Europe Ltd., DE)

VoIP Defender: Highly Scalable SIP-based Security Architecture 9:40 – 10:05
Jens Fiedler (Fokus Fraunhofer, DE); Tomas Kupka (Fraunhofer FOKUS Institute, DE); Sven Ehlert (Fraunhofer FOKUS Institute, DE); Thomas Magedanz (Fraunhofer FOKUS, DE); Dorgham Sisalem (Tekelec, DE)

Coffee Break 10:05 – 10:25

Session 2: Multimedia IP-based Telecommunication Infrastructure
Improving the scalability of an IMS-compliant conferencing framework through presence 10:25 – 10:50
Simon Pietro Romano (University of Napoli Federico II, IT); Tobia Castaldi (University of Napoli, IT); Lorenzo Miniero (University of Napoli, IT); Alessandro Amirante (University of Napoli Federico II, IT)

A Cooperative SIP Infrastructure for Highly Reliable Telecommunication Services 10:50 – 11:15
Ali Fessi (University of Tuebingen, DE); Georg Carle (University of Tuebingen, DE); Heiko Niedermayer (University of Tuebingen, DE); Holger Kinkelin (University of Tuebingen, DE)

Addressing & Invocation of IMS-attached Services 11:15 – 11:40
Ioannis Fikouras (Ericsson, DE); Roman Levenshteyn (Ericsson, DE); Salvatore Loreto (Ericsson, IT); Gonzalo Camarillo (Ericsson, FI)

Lunch Break - CS lounge and courtyard 11:40 – 13:00
IPTComm 2008 organizational meeting for interested parties in Computer Science Conference Room

Session 3: Securing IP-based Telecommunication Services 2
Kiph: A stateful SIP Fuzzer 13:00 - 13:25
Humberto Abdelnur (INRIA Lorraine, FR); Radu State (LORIA, FR); Olivier Festor (LORIA - INRIA, FR)

Denial of Service Attack and Prevention on SIP VoIP Infrastructures Using DNS Flooding 13:25 -13:50
Ge Zhang (Fraunhofer FOKUS Institute, DE); Sven Ehlert (Fraunhofer FOKUS Institute, DE); Thomas Magedanz (Fraunhofer FOKUS, DE); Dorgham Sisalem (Tekelec, DE)

Coffee Break 13:50 – 14:10

Tutorials (parallel sessions) 14:10 - 16:30
IMS vs. P2P and Web 2.0 - Understanding the Role of the IP Multimedia System (IMS) in face of a converging telco and internet service world
Thomas Magedanz (Fraunhofer Fokus, DE)

A Standards Based Software Environment for Providing SIP Application Composition
K. Hal Purdy and Eric Cheung (AT&T Labs - Research, US)

Evening Dinner and Cruise 6:00 - 10:00

Day Two - July 20

Breakfast (outside Auditorium) 8:30 - 9:00

Invited talk 9:00 - 9:45
Jonathan Rosenberg - Cisco Systems

Panel: Where are the VoIP Services? 9:45 - 10:45
Chakrapani Gorrepati (Senior Architect - Vonage)
Jiri Kuthan (Tekelec - AVP Next Generation Networks)
Jeff Pulver (
Jonathan Rosenberg (Cisco Fellow - Voice Technology Group - Cisco Systems)
Henning Schulzrinne (Professor and Chair - Dept of Computer Science - Columbia University)
Brian Whitton (Executive Director of the Access Network Design & Integration organization - Verizon Labs)

Coffee Break 10:45 - 11:00

Session 4: Services Creation for IP-based Telecommunication
Audio Feature Interactions in Voice-over-IP 11:00 – 11:25
Pamela Zave (AT&T Labs - Research, US)

A Stepwise Approach to Developing Languages for SIP Telephony Service Creation 11:25 – 11:50
Nicolas Palix (LaBRI/INRIA, FR); Laurent Réveillère (LaBRI/INRIA, FR); Charles Consel (LaBRI/INRIA, FR); Julia Lawall (DIKU, DK)

ECharts for SIP Servlets: a state-machine programming environment for VoIP applications 11:50 – 12:15
Thomas Smith (AT&T Labs - Research, US); Gregory W. Bond (AT&T Labs - Research, US)

Staging Telephony Service Creation: A Language Approach 12:15 – 12:40
Charles Consel (LaBRI/INRIA, FR); Fabien Latry (LaBRI / INRIA, FR); Julien Mercadal (LaBRI / INRIA, FR)

Lunch Break - Carlton Lounge (right of Auditorium) 12:40 – 14:00
Guest Speaker: Jeff Pulver (

Demo Overviews 14:00 - 15:00

Coffee (outside CS Lounge) 15:00

Demos 15:00 - 16:00

End of Conference 16:00 - 16:15