Wite papers, documents and other reference material.

• Voice over IP and IP Telephony Books
• Organizations
• VOIP Related IETF Working Groups
• Telephony Related Working groups
• Multicasting Working Groups
• Quality of Service Working Groups
• Voice over IP Gateway Vendors
• Standards
• Web Pages
• Internet RFCs
• Internet Drafts
• For related topics see also:
• IP Multicasting References, http://www.cis.ohio-state.edu/~jain/refs/ipm_refs.htm
• Quality of Service over IP References, http://www.cis.ohio-state.edu/~jain/refs/ipqs_ref.htm
• Multimedia Networking References, http://www.cis.ohio-state.edu/~jain/refs/mul_refs.htm

Voice over IP and IP Telephony: Books

• See http://www.cis.ohio-state.edu/~jain/refs/voi_book.htm

Organizations

• International Multimedia Teleconferencing Consortium, http://www.imtc.org/
• IMTC FTP Site, http://www.imtc.org/u/u_ftp.htm
• Conferencing over IP (COIP) Forum - a working group of IMTC, http://www.imtc.org/act_coip.htm
• Voice On The Net (VON) Coalition, http://www.von.org/
• MIT Internet Telephony Consortium, http://itel.mit.edu/
• Frequently Asked Questions about the MIT ITC, http://itel.mit.edu/itel/ITC_FAQ/ITC.FAQ.html
• Enterprise Computer Telephony Forum (ECTF), http://www.ectf.org/
• Internet Fax Routing Forum
• MultiService Switching Forum, http://msforum.org/
• Cablelabs PacketCable, http://www.packetcable.com/
• Third Generation Partnership Project (3gpp), http://www.3gpp.org/
• The Parlay Group, http://www.parlay.org/
• The JAIN APIs, http://java.sun.com/products/jain/
• ETSI SPAN (Service and Protocols for Advanced Networks) Project, http://www.etsi.org/span/Overview.htm
• ETSI TIPHON (Telecommunications and Internet Protocol Harmonization over Networks) Project, http://portal.etsi.org/tiphon

VOIP Related IETF Working Groups

Telephony Related Working Groups

• IP Telephony (iptel), http://www.ietf.org/html.charters/iptel-charter.html
• Service in the PSTN/IN Requesting InTernet Service (spirits), http://www.ietf.org/html.charters/spirits-charter.html
• Session Initiation Protocol (sip), http://www.ietf.org/html.charters/sip-charter.html
• Signaling Transport (sigtran), http://www.ietf.org/html.charters/sigtran-charter.html
• Media Gateway Control (megaco), http://www.ietf.org/html.charters/megaco-charter.html
• SIP for Instant Messaging and Presence Leveraging (simple), http://www.ietf.org/html.charters/simple-charter.html
• Internet Fax (fax), http://www.ietf.org/html.charters/fax-charter.html
• Instant Messaging and Presence Protocol (impp), http://www.ietf.org/html.charters/impp-charter.html
• Internet Message Access Protocol Extension (imapext), http://www.ietf.org/html.charters/imapext-charter.html
• Voice Profile for Internet Mail (vpim), http://www.ietf.org/html.charters/vpim-charter.html
• Audio/Video Transport (avt), http://www.ietf.org/html.charters/avt-charter.html
• Multiparty Multimedia Session Control (mmusic), http://www.ietf.org/html.charters/mmusic-charter.html
• PSTN and Internet Interworking (pint), http://www.ietf.org/html.charters/pint-charter.html
• Service in the PSTN/IN Requesting InTernet Service (spirits), http://www.ietf.org/html.charters/spirits-charter.html
• Telephone Number Mapping (enum), http://www.ietf.org/html.charters/enum-charter.html

Multicasting Working Groups

• MBONE Deployment (mboned), http://www.ietf.org/html.charters/mboned-charter.html
• Inter-Domain Multicast Routing (idmr), http://www.ietf.org/html.charters/idmr-charter.html
• Multicast Extensions to OSPF (mospf), http://www.ietf.org/html.charters/mospf-charter.html
• Protocol Independent Multicast (pim), http://www.ietf.org/html.charters/pim-charter.html

Quality of Service Working Groups

• Integrated Services (intserv), http://www.ietf.org/html.charters/intserv-charter.html
• Integrated Services over Specific Link Layers (issll), http://www.ietf.org/html.charters/issll-charter.html
• Resource Reservation (rsvp), http://www.ietf.org/html.charters/rsvp-charter.html
• RSVP Admission Policy (rap), http://www.ietf.org/html.charters/rap-charter.html
• Multiprotocol Label Switching (mpls), http://www.ietf.org/html.charters/mpls-charter.html

Voice over IP Gateway Vendors

• 3Com Corp., http://www.3com.com/
• Ascend Communications, Inc. http://www.ascend.com/
• Cisco Systems Inc., http://www.cisco.com/
• Franklin Telecommunications Corp., http://www.ftel.com/
• Inalp Networks, Inc. http://www.inalp.com
• Lucent Technologies Inc., http://www.lucent.com/
• Mitel Corporation, http://www.mitel.com/
• Motorola Inc., http://www.mot.com/
• NACT (a division of Verso Technologies), http://www.nact.com
• Netrix Corp., http://www.netrix.com/
• Netspeak Corp., http://www.netspeak.com/
• Nortel Networks, http://www.nortelnetworks.com/index.html
• RADvision Ltd., http://www.radvision.com/
• Sonus Networks, Inc., http://www.sonusnetworks.com/
• VocalTec Inc., http://www.vocaltec.com/

Standards

• ITU-T H.320 Standards for Video Conferencing, http://www.imtc.org/h320.htm
• H.323 ITU Standards, http://www.imtc.org/h323.htm
• H.324 ITU Standards, http://www.imtc.org/h324.htm
• VPIM Technical Specification, http://www.ema.org/vpimdir/specs.html

Web Pages

• An Introduction to IP Telephony , http://www.mockingbirdnetworks.com/pdfs/wp_intro_IPtel.pdf
• An Overview of Circuit, Packet, and SS7/C7 Networks , http://www.mockingbirdnetworks.com/pdfs/wp_nw_overview.pdf
• Applications for Internet Telephony, http://www.dialogic.com/solution/internet/4071web.htm
• Ascend Voice Over IP - Frame Relay Resource Center, http://www.alliancedatacom.com/ascend-voice-over-ip.htm
• Audio, http://www.imtc.org/t120.htm
• Business Communications Review - Voice - over - IP Gateways: ... , http://www.bcr.com/bcrmag/1998/02/p23.asp
• Computer Telephony for the Enterprise, http://www.networkcomputing.com/netdesign/cti1.html
• EHS Company - - Primer: Voice - over - IP Across the Enterprise ..., http://www.ehsco.com/reading/19981001ncf1.html
• Emerging Technology: Reducing Voice over IP Latency, http://www.networkmagazine.com/article/NMG20000710S0012
• Fax over Packet White Paper, http://www.telogy.com/our_products/golden_gateway/FOPwhite.html
• Fine-Tuning Voice over Packet Services , http://www.protocols.com/papers/voip2.htm
• Free H.323 - H.323 Video-Conferencing - an entity concept ... , http://www.h323.org/videoconf.html
• H.323 - ISDN Gateway, http://www.telos.de/linux/H323/default_e.htm
• H.323 - Webopedia Definition and Links, http://webopedia.internet.com/TERM/H/H_323.html
• H.323 Clients, http://www.openh323.org/h323_clients.html
• H.323 Corner, http://www.meetingbywire.com/netmeetingh323.htm
• H.323 Links, http://www.packetizer.com/h323link.html
• H.323 Protocols, http://www.protocols.com/pbook/h323.htm
• H.323 Standards, http://www.openh323.org/standards.html
• IP Telephone Design and Implementation Issues, http://www.telogy.com/our_products/golden_gateway/IPphone.html
• IP Telephony Tutorial, http://www.pt.com/tutorials/iptelephony/
• IP telephony, http://www.lantimes.com/98/98may/805b045b.html
• IP telephony, http://www.teledotcom.com/0398/headend/tdc0398headend_voip.html
• ITworld.com - VOIP - Internet telephony, voice over IP, http://www.itworld.com/Net/3303/
• Index of /doc/ietf/ sigtran, http://wuarchive.wustl.edu/doc/ietf/sigtran/
• Index of /docs/ mgcp, http://www.openphone.org/docs/mgcp/
• Index of /ietf/ megaco, http://www2.cddc.vt.edu/ietf/megaco/
• Index of /ietf/ sigtran, http://www2.cddc.vt.edu/ietf/sigtran/
• Internet Technical Resources: Internet Telephony, http://www.cs.columbia.edu/~hgs/internet/internet-telephony.html
• Internet Telephony Tutorial, http://www.iec.org/tutorials/int_tele/
• Internet Telephony, http://www.internettelephony.com/
• JAIN(TM) MGCP API Specification, http://jcp.org/aboutJava/communityprocess/first/jsr023/
• MEGACO Specifications, http://www.ncoretech.com/voip/megaco.html
• MGCP - Webopedia Definition and Links, http://webopedia.internet.com/TERM/M/MGCP.html
• MGCP Info Page, http://www.vovida.org/mailman/listinfo/mgcp
• MGCP, Multimedia Gateway Control Protocol, http://www.networksorcery.com/enp/protocol/mgcp.htm
• Measure VoIP Networks for Jitter and Loss, http://www.e-insite.net/tmworld
• Megaco and MGCP, http://www.networkmagazine.com/article/NMG20001004S0013
• Megaco and MGCP, http://www.networkmagazine.com/article/NMG20001004S0013
• Megaco, http://www.networksorcery.com/enp/protocol/Megaco.htm
• Migrating Fax to the Internet, http://www.dialogic.com/company/whitepap/4072web.htm
• Migrating to Multiservice Networks -- A Planning Guide, http://www.ieng.com/warp/public/cc/pd/rt/2600/tech/st10_wp.htm
• Mitel: Products: Voice - over - IP, http://www.mitel.com/products/category.cfm?c_id=21
• Motorola VoIP VIPR - Interlink Communication Systems, http://www.interlinkweb.com/~main/motorola-voip-vipr.htm
• Nortel Networks: Softswitch Portfolio for public and private ... , http://www.nortelnetworks.com/products/01/succession/cs/softswitch.html
• Packet Voice Directions, http://www.enterasys.com/products/whitepapers/packet-voice/
• Packetized voice, http://www.lantimes.com/98/98feb/802a011a.html
• Quality of Service in Integrated Voice, Video, and Data Networks , http://www.memotec.com/products/qos.htm
• ReSerVation Protocol (RSVP), http://www.isi.edu/rsvp/overview.html
• Real-time IP, http://www.lantimes.com/97/97aug/708b059b.html
• Real-time Transport Protocol (RTP), http://www.cs.columbia.edu/~hgs/rtp/
• SCTP @ TU's Netlab, http://netlab.cis.temple.edu/SCTP/
• SCTP @ UD's Protocol Engineering Lab, http://www.cis.udel.edu/~iyengar/research/SCTP/
• SCTP, http://www.sctp.de/
• SCTP, Stream Control Transmission Protocol, http://www.networksorcery.com/enp/protocol/sctp.htm
• SS7 Tutorial, http://www.pt.com/tutorials/ss7/
• Signaling System 7 (SS7), http://www.iec.org/online/tutorials/ss7/topic14.html
• TechSearch - Archive Search for voice over IP, http://www.techweb.com/se/techsearch.cgi?queryText=voice+over+IP&sorted=true&collname=current&publication=All
• Telcordia Softswitch Overview, http://www.telcordia.com/products_services/networksystems/softswitch/
• The Dawn of the Stupid Network, http://www.isen.com/papers/Dawnstupid.html
• The SIP Center - A comparison between SIP and H.323, http://www.sipcenter.com/aboutsip/siph323.htm
• The SIP Center - The architecture of MGCP /Megaco and the ... , http://www.sipcenter.com/aboutsip/siph323/mgcparch.htm
• The US Softswitch Hardware Market, A Market Research Report, http://www.insight-corp.com/softswitch.html
• Transporting Voice Over IP , http://www.mockingbirdnetworks.com/pdfs/wp_intro_IPtel.pdf
• Understanding the H . 323 Standard, http://www.microsoft.com/windows/NetMeeting/Corp/reskit/Chapter11/default.asp
• VNUNET.COM Low-cost voice - over - IP: talk is cheap for the Net ..., http://www.vnunet.com/Analysis/83784
• VON & H.323 Solutions at TelephonyWorld.com, http://www.telephonyworld.com/von323/von323.htm
• VoIP Gateway Vendors, http://www.cabledatacomnews.com/iptel/voipgateway.html
• VoIP Howto, http://www.linuxdoc.org/HOWTO/VoIP-HOWTO.html
• VoIP Psychology, http://www.networkmagazine.com/article/NMG20010517S0002
• VoIP in the Enterprise, http://www.networkcomputing.com/918/918f1.html
• VoIP, http://telecom.about.com/cs/voip/
• Voice - over - IP Mini-HOWTO, http://www.physics.brocku.ca/~edik/Voice-over-IP/
• Voice Over IP (VoIP) Tutorial - Frame Relay Resource Center, http://www.alliancedatacom.com/voice-over-ip-tutorial.htm
• Voice Over IP (VoIP) the Internet Telephony Online Resource., http://www.internet-telephony.org/voice_over_ip/
• Voice Over IP Networks, http://www.anatel.net/whitepapers/WhiteVoiceOIP2.pdf
• Voice Over IP Routers for Internet and Intranet Telephony, http://www.mot.com/MIMS/ISG/PressAnnouncements/100197.html
• Voice Technologies for IP and Frame Relay Networks , http://www.alliancedatacom.com/motorola-voip-vofr-white-paper.htm
• Voice and Fax over IP, http://www.iec.org/tutorials/vfoip/
• Voice over Frame Relay, IP and ATM, http://www.protocols.com/papers/voe.htm
• Voice over IP ( VoIP ), http://telemat.die.unifi.it/book/1998/VoIP/indexVOIP.html
• Voice over IP (VoIP), http://telemat.die.unifi.it/book/1998/VoIP/indexVOIP.html
• Voice over IP Calculator, http://www.voip-calculator.com/
• Voice over IP Quick Start Guide, http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/voice/4936vqsg.htm
• Voice over IP comparison, http://www.lantimes.com/testing/98compare/pcteleph.html
• Voice over IP: Title Page, http://www.techguide.com/comm/voiceip.shtml
• Voice over Packet White Paper, http://www.telogy.com/our_products/golden_gateway/VOPwhite.html
• Voice-over-IP, http://www.lantimes.com/98/98jan/801b022a.html
• Voice/Fax over Frame Relay vs. Voice/Fax over IP , http://www.memotec.com/technology/fripwp.htm
• WHAT IS VoIP?, http://www.innomedia.com/ip_telephony/voip/index.htm
• Web ProForum Tutorial: H.323, http://www.iec.org/online/tutorials/h323/topic09.html
• Web ProForum Tutorial: H.323, http://www.iec.org/online/tutorials/h323/topic10.html
• Web ProForum Tutorial: Local-Exchange Softswitch System: ... , http://www.iec.org/online/tutorials/softswitch/topic04.html
• Web ProForum Tutorial: V/FoIP, http://www.iec.org/tutorials/vfoip/
• What is Softswitch, http://www.mobilein.com/what_is_softswitch.htm
• Why A Thin Client? , http://www.hippoinc.com/whitepapers/thinclient.htm
• telecom technologies, inc.- The Softswitch Source - Products, http://www.telecomtechnologies.com/products/prod_INIPintro.htm
• Voice over Cable (VoCable) White Paper, http://www.telogy.com/our_products/golden_gateway/vocable.html

Internet RFCs

• RFC 3136, The SPIRITS Architecture. L. Slutsman, Editor, I. Faynberg, H. Lu, M. Weissman. June 2001. ftp://ftp.isi.edu/in-notes/rfc3136.txt
• RFC 3087, Control of Service Context using SIP Request-URI. B. Campbell, R. Sparks. April 2001. ftp://ftp.isi.edu/in-notes/rfc3087.txt
• RFC 3064, MGCP CAS Packages. B. Foster. February 2001. ftp://ftp.isi.edu/in-notes/rfc3064.txt
• RFC 3055, Management Information Base for the PINT Services Architecture. M. Krishnaswamy, D. Romascanu. February 2001. ftp://ftp.isi.edu/in-notes/rfc3055.txt
• RFC 3054, Megaco IP Phone Media Gateway Application Profile. P. Blatherwick, R. Bell, P. Holland. January 2001. ftp://ftp.isi.edu/in-notes/rfc3054.txt
• RFC 3050, Common Gateway Interface for SIP. J. Lennox, H. Schulzrinne, J. Rosenberg. January 2001. ftp://ftp.isi.edu/in-notes/rfc3050.txt
• RFC 3015, Megaco Protocol 1.0. F. Cuervo, N. Greene, A. Rayhan, C. Huitema, B. Rosen, J. Segers. November 2000. ftp://ftp.isi.edu/in-notes/rfc3015.txt
• RFC 2995, Pre-Spirits Implementations of PSTN-initiated Services. H. Lu, Editor, I. Faynberg, J. Voelker, M. Weissman, W. Zhang, S. Rhim, J. Hwang, S. Ago, . Hwang, S. Ago, S. Moeenuddin, S. Hadvani, S. Nyckelgard, J. Yoakum, L. Robart. November 2000. ftp://ftp.isi.edu/in-notes/rfc2995.txt
• RFC 2976, The SIP INFO Method. S. Donovan. October 2000. ftp://ftp.isi.edu/in-notes/rfc2976.txt
• RFC 2974, Session Announcement Protocol. M. Handley, C. Perkins, E. Whelan. October 2000. ftp://ftp.isi.edu/in-notes/rfc2974.txt
• RFC 2897, Proposal for an MGCP Advanced Audio Package. D. Cromwell. August 2000. ftp://ftp.isi.edu/in-notes/rfc2897.txt
• RFC 2880, Internet Fax T.30 Feature Mapping. L. McIntyre, G. Klyne. August 2000. ftp://ftp.isi.edu/in-notes/rfc2880.txt
• RFC 2879, Content Feature Schema for Internet Fax (V2). G. Klyne, L. McIntyre. August 2000. ftp://ftp.isi.edu/in-notes/rfc2879.txt
• RFC 2871, A Framework for Telephony Routing over IP. J. Rosenberg, H. Schulzrinne. June 2000. ftp://ftp.isi.edu/in-notes/rfc2871.txt
• RFC 2848, The PINT Service Protocol: Extensions to SIP and SDP for IP Access to Telephone Call Services. S. Petrack, L. Conroy. June 2000. ftp://ftp.isi.edu/in-notes/rfc2848.txt
• RFC 2833, RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals. H. Schulzrinne, S. Petrack. May 2000. ftp://ftp.isi.edu/in-notes/rfc2833.txt
• RFC 2806, URLs for Telephone Calls. A. Vaha-Sipila. April 2000. ftp://ftp.isi.edu/in-notes/rfc2806.txt
• RFC 2719, Framework Architecture for Signaling Transport. L. Ong, I. Rytina, M. Garcia, H. Schwarzbauer, L. Coene, H. Lin, I. Juhasz, M. Holdrege, C. Sharp. October 1999. ftp://ftp.isi.edu/in-notes/rfc2719.txt
• RFC 2705, Media Gateway Control Protocol (MGCP) Version 1.0. M. Arango, A. Dugan, I. Elliott, C. Huitema, S. Pickett. October 1999. ftp://ftp.isi.edu/in-notes/rfc2705.txt
• RFC 2543, SIP: Session Initiation Protocol. M. Handley, H. Schulzrinne, E. Schooler, J. Rosenberg. March 1999. ftp://ftp.isi.edu/in-notes/rfc2543.txt
• RFC 2542, Terminology and Goals for Internet Fax. L. Masinter. March 1999. ftp://ftp.isi.edu/in-notes/rfc2542.txt
• RFC 2532, Extended Facsimile Using Internet Mail. L. Masinter, D. Wing. March 1999. ftp://ftp.isi.edu/in-notes/rfc2532.txt
• RFC 2531, Content Feature Schema for Internet Fax. G. Klyne, L. McIntyre. March 1999. ftp://ftp.isi.edu/in-notes/rfc2531.txt
• RFC 2458, Toward the PSTN/Internet Inter-Networking--Pre-PINT Implementations. H. Lu, M. Krishnaswamy, L. Conroy, S. Bellovin, F. Burg, A., DeSimone, K. Tewani, P. Davidson, H. Schulzrinne, K. Vishwanathan. November 1998. ftp://ftp.isi.edu/in-notes/rfc2458.txt
• RFC 2423, VPIM Voice Message MIME Sub-type Registration. G. Vaudreuil, G. Parsons. September 1998. ftp://ftp.isi.edu/in-notes/rfc2423.txt
• RFC 2422, Toll Quality Voice - 32 kbit/s ADPCM MIME Sub-type Registration. G. Vaudreuil, G. Parsons. September 1998. ftp://ftp.isi.edu/in-notes/rfc2422.txt
• RFC 2421, Voice Profile for Internet Mail - version 2. G. Vaudreuil, G. Parsons. September 1998. ftp://ftp.isi.edu/in-notes/rfc2421.txt
• RFC 2327, SDP: Session Description Protocol. M. Handley, V. Jacobson. April 1998. ftp://ftp.isi.edu/in-notes/rfc2327.txt
• RFC 2306, Tag Image File Format (TIFF) - F Profile for Facsimile. G. Parsons, J. Rafferty. March 1998. ftp://ftp.isi.edu/in-notes/rfc2306.txt
• RFC 2305, A Simple Mode of Facsimile Using Internet Mail. K. Toyoda, H. Ohno, J. Murai, D. Wing. March 1998. ftp://ftp.isi.edu/in-notes/rfc2305.txt
• RFC 2304, Minimal FAX address format in Internet Mail. C. Allocchio. March 1998. ftp://ftp.isi.edu/in-notes/rfc2304.txt
• RFC 2303, Minimal PSTN address format in Internet Mail. C. Allocchio. March 1998. ftp://ftp.isi.edu/in-notes/rfc2303.txt
• RFC 2302, Tag Image File Format (TIFF) - image/tiff MIME Sub-type Registration. G. Parsons, J. Rafferty, S. Zilles. March 1998. ftp://ftp.isi.edu/in-notes/rfc2302.txt
• RFC 2301, File Format for Internet Fax. L. McIntyre, S. Zilles, R. Buckley, D. Venable, G. Parsons, J. Rafferty. March 1998. ftp://ftp.isi.edu/in-notes/rfc2301.txt
• RFC 2159, A MIME Body Part for FAX, ftp://ftp.isi.edu/in-notes/rfc2159.txt
• RFC 1911, Voice Profile for Internet Mail, ftp://ftp.isi.edu/in-notes/rfc1911.txt
• RFC 1789, INETPhone: Telephone Services and Servers on Internet, ftp://ftp.isi.edu/in-notes/rfc1789.txt
• RFC 0978, Voice File Interchange Protocol (VFIP), ftp://ftp.isi.edu/in-notes/rfc0978.txt
• RFC 0741, Specifications for the Network Voice Protocol (NVP), ftp://ftp.isi.edu/in-notes/rfc0741.txt
• RFC 0511, Enterprise phone service to NIC from ARPANET sites, ftp://ftp.isi.edu/in-notes/rfc0511.txt

Internet Drafts

• Search for "voice", "fax", "Media", "PSTN", "signaling", or "telephony" at http://search.ietf.org/or click on the following queries:
• http://search.ietf.org/cgi-bin/htsearch?words=voice
• http://search.ietf.org/cgi-bin/htsearch?words=fax
• http://search.ietf.org/cgi-bin/htsearch?words=media
• http://search.ietf.org/cgi-bin/htsearch?words=pstn
• http://search.ietf.org/cgi-bin/htsearch?words=signaling
• http://search.ietf.org/cgi-bin/htsearch?words=signalling
• http://search.ietf.org/cgi-bin/htsearch?words=telephony