- BaseVoice
Commercial software development company that produces PBX, router, proxy and application server software.
http://www.basevoice.com
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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- Brekeke Software
Products for small to medium sized offices and a server database.
http://www.brekeke.com/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- eSMS.com
Provides UK phone numbers which forward calls to SIP.
http://www.esms.com
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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- Free IP Call
A proxy service provider with information in English and French.
http://www.freeipcall.com
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- Interactive Intelligence, Inc.
Developers of a proxy server. Site contains downloads, documentation and a forum.
http://www.inin.com/sipproxy
(Added: Thu Mar 30 2006 Rating: 0.00 Votes: 0)
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- LignUp Corp
Applications developer. Products include software PBX's for enterprise and service providers.
http://www.lignup.com/
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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- Ninetel USA
A USA based proxy service provider and supplier of hardware phones and routers. Site contains call rates and service details.
http://www.ninetelusa.com
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- OpenSER
A branch of the SIP Express Router project, offering an open-source SIP server.
http://openser.org/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- Parrish Systems
Sells off the shelf code and provides a software consultancy service.
http://www.parrishsys.com
(Added: Wed Apr 05 2006 Rating: 0.00 Votes: 0)
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- PC Phone Review
News and reviews of hardware, software and service providers in the United States.
http://www.pcphonereview.com
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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- PROTOS Test Suite
A test-suite to find vulnerabilities in protocol software.
http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/
(Added: Fri Mar 31 2006 Rating: 0.00 Votes: 0)
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- pulver.com
A collection of information on the protocol. Contains news, reports and an IP telephony job noticeboard.
http://www.pulver.com/
(Added: Sat Apr 01 2006 Rating: 0.00 Votes: 0)
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- Secure SIP Client
An RFC3261 client running on Win32 and WinCE PDAs supporting voice, video, sRTP and signaling security by TLS.
http://www.securesipclient.com
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- Session Initiation Protocol (SIP)
FAQs, background materials and lists of current work in this field.
http://www.cs.columbia.edu/sip/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- SIP Compose Group
A working group experimenting and documenting the protocol. Contains various internet technical resources.
http://compose.labri.fr/documentation/sip/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- SIP Forum
A membership based forum. Also contains a news board.
http://www.sipforum.org/
(Added: Wed Apr 05 2006 Rating: 0.00 Votes: 0)
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- SIP Made Easy
An introductory tutorial talks about protocol functions, components, message types, how it works and where it is applied.
http://geocities.com/intro_to_multimedia/SIP/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- SIP Wiki
Wiki based resource containing information and links.
http://www.toyz.org/cgi-bin/sipwiki.cgi
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- SIP411 Directory Services
A Yellow Pages style directory of SIP addresses.
http://www.sip411.com
(Added: Wed Apr 05 2006 Rating: 0.00 Votes: 0)
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- Sipcall
A UK based service provider. Also contains hardware related links and protocol white-papers.
http://www.sipcall.co.uk/
(Added: Sun Apr 02 2006 Rating: 0.00 Votes: 0)
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- SIPfoundry
An international open source community providing VoIP solutions and technology based on the SIP standard.
http://www.sipfoundry.org/
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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- SIPquest Inc.
Software component developer for service providers and telecom equipment vendors.
http://www.sipquest.com/
(Added: Fri Mar 31 2006 Rating: 0.00 Votes: 0)
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- Soft Front
Provides a development environment for software centered around SIP/VoIP technology.
http://www.softfront.co.jp/en/
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- Tech Invite
Portal containing links to technical information and RFC documentation.
http://www.tech-invite.com
(Added: Mon Apr 03 2006 Rating: 0.00 Votes: 0)
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- The SIP Center
Portal with technical and market resources aimed at commercial developers. Also provides a testbed area for software and proxy development.
http://www.sipcenter.com/
(Added: Thu Apr 06 2006 Rating: 0.00 Votes: 0)
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