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Ninetel USA
Ninetel USA: A USA based proxy service provider and supplier of hardware phones and routers. Site contains call rates and service details. (SIP)
http://www.ninetelusa.com |
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Parrish Systems
Parrish Systems: Sells off the shelf code for SIP, SDP and RTP protocols and provides a software consultancy service (SIP)
http://www.parrishsys.com |
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SIP411 Directory Services
SIP411 Directory Services: A Yellow Pages style directory of SIP addresses. (SIP)
http://www.sip411.com |
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SIP Forum
SIP Forum: A membership based forum. Also contains a news board. (SIP)
http://www.sipforum.org/ |
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Free IP Call
Free IP Call: A proxy service provider with information in English and French. (SIP)
http://www.freeipcall.com |
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Session Initiation Protocol (SIP)
Session Initiation Protocol (SIP): FAQs, background materials and lists of current work in this field. (SIP)
http://www.cs.columbia.edu/sip/ |
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Interactive Intelligence, Inc.
Interactive Intelligence, Inc.: Developers of a proxy server. Site contains downloads, documentation and a forum. (SIP)
http://www.inin.com/sipproxy |
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Soft Front
Soft Front: Provides a development environment for software centered around SIP/VoIP technology. (SIP)
http://www.softfront.co.jp/en/ |
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VoIP News
VoIP News: Information on available technologies and software/hardware product reviews. (SIP)
http://www.voip-news.com |
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JustIT PBX
JustIT PBX: A solid state hybrid PBX product combining PSTN telephony with Voice over IP. (SIP)
http://www.justit.ws/products/jpbx/index.html |
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BaseVoice
BaseVoice: Commercial software development company that produces PBX, router, proxy and application server software. (SIP)
http://www.basevoice.com |
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VoIP User
VoIP User: Consumer guide and forum. Also has software phone downloads and links to service providers. (SIP)
http://www.voipuser.org |
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SIP Compose Group
SIP Compose Group: A working group experimenting and documenting the protocol. Contains various internet technical resources. (SIP)
http://compose.labri.fr/documentation/sip/ |
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SIPquest Inc.
SIPquest Inc.: Software component developer for service providers and telecom equipment vendors. (SIP)
http://www.sipquest.com/ |
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Sipcall
Sipcall: A UK based service provider. Also contains hardware related links and protocol white-papers. (SIP)
http://www.sipcall.co.uk/ |
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PROTOS Test Suite
PROTOS Test Suite: A test-suite to find vulnerabilities in protocol software. (SIP)
http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/ |
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Brekeke Software
Brekeke Software: Products for small to medium sized offices and a server database. (SIP)
http://www.brekeke.com/ |
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The SIP Center
The SIP Center: Portal with technical and market resources aimed at commercial developers. Also provides a testbed area for software and proxy development. (SIP)
http://www.sipcenter.com/ |
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pulver.com
pulver.com: A collection of information on the protocol. Contains news, reports and an IP telephony job noticeboard. (SIP)
http://www.pulver.com/ |
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SIP Wiki
SIP Wiki: Wiki based resource containing information and links. (SIP)
http://www.toyz.org/cgi-bin/sipwiki.cgi |
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PC Phone Review
PC Phone Review: News and reviews of hardware, software and service providers in the United States. (SIP)
http://www.pcphonereview.com |