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Web Links


VoIP & SIP Innovations
IETF – The Internet Engineering Task Force: SIP Working Group
http://www.ietf.org/html.charters/sip-charter.html
IETF: Session Initiation Proposal Investigation (SIPPING) Working Group
http://www.ietf.org/html.charters/sipping-charter.html
IETF: Multiparty Multimedia Session Control (MMUSIC) Working Group
http://www.ietf.org/html.charters/mmusic-charter.html
IETF: SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE)
http://www.ietf.org/html.charters/simple-charter.html
Columbia University Department of Computer Science – SIP
http://www.cs.columbia.edu/sip/
The SIP Center
http://www.sipcenter.com/
SIP FORUM
http://www.sipforum.org/
ITU – International Telecommunication Union
http://www.itu.int/home/index.html
VoIP Protocols
A Comparison of SIP and H.323 for Internet Telephony
http://www.cs.columbia.edu/~hgs/papers/Schu9807_Comparison.pdf
SIP versus H.323
http://www.iptel.org/info/trends/sip.html
Comparisons between H.323 and SIP
http://www.packetizer.com/voip/h323_vs_sip/
SIP and H.323
http://www.sipcenter.com/sip.nsf/html/SIP+and+H.323
SIP Vs. H.323 - A Comparison
http://microtronix.ca/sip_vs_h323.htm
Open Source VoIP Products
VOVIDA.ORG
http://www.vovida.org
SER – SIP Express Router
http://www.iptel.org/ser/
ASTERISK
http://www.asterisk.org/
IP Telephony Magazines
Internet Telephony Magazine
http://www.tmcnet.com/voip/default.aspx
Communications Convergence
http://www.cconvergence.com/
TMCnet
http://www.tmcnet.com/sectors/voip/Default.aspx
Discussion Forums
Voiceglobe Forum
http://forum.voiceglobe.net
The Daily Payload
http://www.dailypayload.com/forums/
VoIP Troubleshooter.com
http://www.voiptroubleshooter.com/forum/index.php
Voxilla Forum
http://voxilla.com/modules.php?op=modload&name=PNphpBB2&file=index