作者ieDaniel (热血方程式)
看板VoIP
标题[情报] Skype技术性文章
时间Fri Sep 16 18:11:39 2005
有兴趣的可以去google用下面这个paper黄色标题搜寻,有很多点可以download pdf档
An Analysis of the Skype Peer-to-Peer Internet Telephony Protocol
因为包含一些图片无复制到bbs
只截取abstract以供参考
ABSTRACT
Skype is a peer-to-peer VoIP client developed by KaZaa in 2003.
Skype claims that it can work almost seamlessly across NATs and
firewalls and has better voice quality than the MSN and Yahoo
IM applications. It encrypts calls end-to-end, and stores user
information in a decentralized fashion. Skype also supports
instant messaging and conferencing.
This report analyzes key Skype functions such as login, NAT and
firewall traversal, call establishment, media transfer, codecs, and
conferencing under three different network setups. Analysis is
performed by careful study of Skype network traffic.
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