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Session Initiation Protocol (SIP) - http://www.cs.columbia.edu/sip/
FAQs, background materials and lists of current work in this field. |
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pulver.com - http://www.pulver.com/
A collection of information on the protocol. Contains news, reports and an IP telephony job noticeboard. |
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The SIP Center - http://www.sipcenter.com/
Portal with technical and market resources aimed at commercial developers. Also provides a testbed area for software and proxy development. |
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SIP Forum - http://www.sipforum.org/
A membership based forum. Also contains a news board. |
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Tech Invite - http://www.tech-invite.com
Portal containing links to technical information and RFC documentation. |