Skype JournalBriefing Book

Wednesday, April 12, 2023

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Talking Points

• User behavior – Guha, Daswani, Jain

• Buyer perceptions - Nilssen, Greenberg

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An Experimental Study of the Skype Peer-to-Peer VoIP System [PDF Version] Saikat GuhaCornell Universitysaikat@cs.cornell.edu

Neil Daswani, Ravi JainGoogle {daswani, ravijain}@google.com

3/07/2006

http://saikat.guha.cc.nyud.net:8090/pub/iptps06-skype/

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Percentage of all nodes, and supernodes active at any time.

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Geographic distribution of supernodes as observed over the duration of our trace.

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Fraction of supernodes joining or departing the network over the duration of our trace.

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Log log plot of the complimentary CDF of supernode session times.

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Semi log plot of CDF of bandwidth used by our supernode.

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Semi log plot of CCDF of inter arrival time of relayed VoIP and file transfer sessions

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Semi log plot of CDF of Skype VoIPconversation durations.

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Semi log plot of CDF of file transfer sizes

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Q3 2005 WebMetrics Executive Summary

November, 2005

Sample Charts and Selected High-Level Summary of Findings

Andrew H. Nilssen is Senior Analyst & Partner with Wainhouse Research. Alan D. Greenberg is Senior Analyst & Consultant with Wainhouse Research.

Wainhouse Research

112 Sumner Road

Brookline, MA 02146

www.wainhouse.com

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What do you think of Skype’s quality?

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Which of the following are the three (3) most important applications of web conferencing in your organization?

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Skype Journal.com

Phil Wolff

+1-510-444-8234

Skype:evanwolf

editor@SkypeJournal.com

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