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Columbia VoIP Testbed |
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Overview |
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What? Columbia Voice over IP (VoIP) Testbed is a research project that aims
to create a VoIP infrastructure for experimentation, analysis, testing,
prototyping and deployment of SIP/VoIP components in a variety of
environments. This is a multi-year
research project, spanning four universities and supported by NSF. |
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Why? The primary motivation for this effort stems from the realization that
VoIP experiments require a distributed testbed and currently, there are no
dedicated large-scale telecom testbeds.
A geographically distributed, configurable VoIP testbed provides an
ideal platform to carry out a diverse set of VoIP related experiments
including (but not limited to) – ·
Test interoperability of SIP devices ·
Study security & vulnerability characteristics ·
Performance measurements of SIP devices ·
Impact of middle-boxes (NAT, SBC etc) on VoIP ·
Interoperability between PSTN and VoIP networks ·
Prototyping of VPN-based private VoIP systems |
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Who? Columbia ·
Prof. Henning Schulzrinne ·
Archana Rao (Graduate Researcher) External collaborators ·
University of North Texas (Prof. Ram Dantu) ·
Purdue University (Prof. Elisa Bertino, Prof. Sonia
Fahmy) ·
University of California, Davis (Prof. Dipak Ghosal) |
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Where? The Columbia VoIP testbed is setup in the Internet Real-Time Laboratory (IRT
Lab) and consists of - ·
SIP servers (registrars, proxies) ·
SIP end-devices (soft-phones, hard-phones, wireless
phones, video phones) ·
Networking devices (VPN router, Ethernet switch,
Wireless Access Point) ·
Support servers (DNS, DHCP) The Architecture section provides a detailed
explanation of the components, their interconnections and the interfaces. |
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References About the project ·
CRI testbed webpage at UNT (http://secnet.csci.unt.edu/CRI/) ·
NSF press release (http://www.nsf.gov/news/news_summ.jsp?cntn_id=106828) ·
Purdue announcement (http://www.cs.purdue.edu/news/5-9-06VoIP.htm) |
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