Voice over IP is a hot technology. Staying up on the latest Voice over IP technology can be difficult. The content below is a good reference guide covering all things related to Voice Over IP including Voice over IP news, articles, references, FAQs, and more. It should be a great starting point to to learn all about Voice over IP.

Voice over IP Recent News

Ice Wireless and Iristel announce partnership to expand range of telecommunications and Internet services in the Northwest Territories, Yukon and Nunavut

5/28/2012 11:13:58 AM

Ice Wireless and Iristel partner to end North America's last telephone monopoly and expand cellular service in Canada's North

5/28/2012 9:13:54 AM

Forbes names parent company of TDS Telecommunications Corp. a 'Most Trustworthy Company'

5/28/2012 8:00:01 AM

Partners Encourage Entanet To Continue Pursuing Progressive Channel Strategy

5/28/2012 7:14:13 AM

Set Top Boxes: Market Shares, Strategies, and Forecasts, Worldwide, 2012 to 2018

5/28/2012 6:13:54 AM

Global and China GaAs-based Device Industry Report, 2011-2012

5/28/2012 5:43:58 AM

BUYINS.NET: Market Maker Surveillance Report. PFE, GE, WFC, CSCO, AIG, MSFT, Bearishly Biased Price Friction For Friday, May 25th 2012

5/28/2012 3:33:43 AM

BUYINS.NET: Market Maker Surveillance Report. T, HRB, PPL, D, ALU, NEE, Highest Net Buy Volume With Lowest Price Friction For Friday, May 25th 2012

5/28/2012 3:33:39 AM

Approval and Promulgation of Implementation Plans; Kentucky; Louisville; Fine Particulate Matter 2002 Base Year Emissions Inventory

5/25/2012 5:44:23 PM

Approval and Promulgation of Air Quality Implementation Plans; State of Florida; Regional Haze State Implementation Plan

5/25/2012 5:44:22 PM

Why the Cisco Cius Failed & Why Microsoft Might Beat the Mighty iPad

5/25/2012 3:53:36 PM

Information Technology (IT) Seminar Helps Businesses Leverage Cloud Computing and Mobile Technologies

5/25/2012 3:14:02 PM

Research and Markets: Fax over IP Server Markets: 2011-2016 - The Market for FoIP Servers Will Grow Only At 10.9% CAGR, To $360 Million In 2016

5/25/2012 10:01:13 AM

Voice Over IP

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Voice Over IP Books

Amazon VoIP Books
SIP: Understanding the Session Initiation Protocol, Second Edition by Alan Johnston
SIP Demystified by Gonzalo Camarillo
VoIP Telephony with Asterisk by Paul Mahler
Carrier Grade Voice Over IP
Rich Tehrani's IP Telephony Dictionary
VoIP Fundamentals by Jonathan Davidson
VoIP Books.com Bookstore

Voice Over IP Organizations

International Multimedia Teleconferencing Consortium, http://www.imtc.org/
Enterprise Computer Telephony Forum (ECTF), http://www.ectf.org/
Cablelabs PacketCable, http://www.packetcable.com/
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

The JAIN APIs (Java technology APIs that enable the rapid development of Java-based next generation communications products and services for the Java platform), http://java.sun.com/products/jain/

Voice Over IP Conferences

Voice Over IP News

TMCNet.com - Excellent source of Voice over IP news and articles, http://www.tmcnet.com/
eWeek's VoIP page - http://www.eweek.com/category2/0,1738,1586434,00.asp
Tom Keating's VoIP Blog - Covers VoIP news, gadgets, and more, http://blog.tmcnet.com/blog/tom-keating/
Internet Telephony Magazine - World's First Voice over IP magazine (1996) with VoIP product reviews, articles, news, etc.
VoIP Newsletters

CNet - This Week in VoIP News - http://news.com.com/This+week+in+VoIP+news/2100-7352_3-5450510.html
TelephonyWorld VoIP news- http://www.telephonyworld.com/von323/von323.htm

Voice over IP Glossary - What is Voice over IP?

What is Voice over IP? (defined / definitions):
- http://www.intel.com/network/csp/solutions/contact_cntr/6671web.htm

Voice Over IP Whitepapers

Voice Over IP Products, services in a searchable Voice over IP Buyer's Guide.
Voice Over IP: General
Voice Over IP: Protocols and Standards
Voice Over IP: Recording
Voice Over IP: Challenges
Voice Over IP: In the Call Center

Voice Over IP Articles

Finding And Fixing VoIP Problems, Tom Gallatin, Internet Telephony Magazine, May 2003.
It's Time To Take a Look At SIP, Peter Morrissey, Network Computing, April 17, 2003.
Measuring Voice Quality in VoIP Networks: Going Beyond "Can You Hear Me Now?", Laura Holly, Internet Telephony Magazine, April 2003.
VoIP Call Recording Goes Mainstream
VoIP Regulation: What Lessons Can We Learn From Wireless?
Popular Telephony P2P Revolutionizes VoIP
Tom Keating 2005 VoIP Predictions

Voice Over IP Testing Tools

Voice Over IP Testing Tools in a searchable Voice over IP Buyer's Guide, Internet Telephony Buyer's Guide
Empirix - Has a comprehensive suite of Voice over IP testing tools
Radcom - extensive testing tools in Voice over IP, wireless, cellular, ATM, ISDN, and more.

Voice Over IP Related IETF Working Groups

Telephony Related Working Groups

ETSI (the European Telecommunications Standards Institute), http://www.etsi.org
Institute of Electrical and Electronics Engineers, Inc. (IEEE, pronounced Eye-triple-E), http://www.ieee.org
International Telecommunications Union (ITU), a treaty organization of the United Nations with every country as members and the oldest telecommunications standards organization, dating back to 1865, http://www.itu.org
IP Telephony, http://www.ietf.org/html.charters/iptel-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
PSTN and Internet Interworking (pint), http://www.ietf.org/html.charters/pint-charter.html
Telephone Number Mapping (ENUM), http://www.ietf.org/html.charters/enum-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
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
Internet Fax (fax), http://www.ietf.org/html.charters/fax-charter.html

Quality of Service Working Groups

Integrated Services (intserv), http://www.ietf.org/html.charters/intserv-charter.html
Resource Reservation (rsvp), http://www.ietf.org/html.charters/rsvp-charter.html
Multiprotocol Label Switching (mpls), http://www.ietf.org/html.charters/mpls-charter.html

Voice over IP Standards

ITU-T H.323, H.320, H.324 , T.120 Standards, http://www.imtc.org/
H.323 ITU Standards, http://www.imtc.org/h323.htm
H.324 ITU Standards, http://www.imtc.org/h324.htm

Voice over IP Web Pages

VoIP Forums - Excellent Voice over IP Forums to learn the latest gossip, trends, tutorials, and get help from fellow Voice over IP forum members.
An Introduction to IP Telephony , http://www.mockingbirdnetworks.com/pdfs/wp_intro_IPtel.pdf
Getting Started with SIP API for J2ME (JSR 180), http://developers.sun.com/techtopics/mobility/apis/articles/sip/
SIP - Open Source, http://www.sipfoundry.org/
SIP Protocol Explained, http://www.protocols.com/pbook/VoIPFamily.htm#SIP
SIP - Webopedia / Wiki, http://www.voip-info.org/wiki-SIP
Fine-Tuning Voice Over Packet Services , http://www.protocols.com/papers/voip2.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 Protocol, http://www.protocols.com/pbook/h323.htm
H.323 Video-Conferencing, http://www.h323.org/videoconf.html
H.323 Standards, http://www.openh323.org/standards.html
IP Telephony Tutorial, http://www.pt.com/tutorials/iptelephony/
ITworld.com - VOIP - Internet telephony, Voice Over IP, http://www.itworld.com/Net/3303/
Internet Telephony Tutorial, http://www.iec.org/tutorials/int_tele/
JAIN 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
Megaco, http://www.networksorcery.com/enp/protocol/Megaco.htm
Motorola VoIP VIPR - Interlink Communication Systems, http://www.interlinkweb.com/~main/motorola-voip-vipr.htm
Reservation Protocol (RSVP), http://www.isi.edu/rsvp/overview.html
Real-time Transport Protocol (RTP) News, http://www.cs.columbia.edu/~hgs/rtp/
SCTP, http://www.sctp.de/ - SCTP is designed to transport PSTN signaling messages over IP networks, but is capable of broader applications.
SCTP for Beginners, http://tdrwww.exp-math.uni-essen.de/inhalt/forschung/sctp_fb/
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
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, http://www.sipcenter.com/aboutsip/siph323/mgcparch.htm
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
Voice over IP Gateway Vendors, http://www.cabledatacomnews.com/iptel/voipgateway.html
Voice over IP Howto, http://www.linuxdoc.org/HOWTO/VoIP-HOWTO.html
Voice over IP in the Enterprise, http://www.networkcomputing.com/918/918f1.html
Voice over IP, 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 Links, http://www.plantronics.com/north_america/en_US/hot_topics/links/links_bluetooth.jhtml#voip
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 Quick Start Guide, http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/voice/4936vqsg.htm
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

Internet RFCs related to Voice over IP

E.164 Number Mapping for the Extensible Provisioning Protocol , December 1, 2004
ENUM Implementation Issues and Experiences, October 24, 2004
RFC 3261, SIP: Session Initiation Protocol, June 2002
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 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 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 2871, A Framework for Telephony Routing over IP. J. Rosenberg, H. Schulzrinne. June 2000. ftp://ftp.isi.edu/in-notes/rfc2871.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 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 2531, Content Feature Schema for Internet Fax. G. Klyne, L. McIntyre. March 1999. ftp://ftp.isi.edu/in-notes/rfc2531.txt

Internet Drafts related to Voice over IP

Search for "voice over ip", "SIP", "media", "PSTN", "signaling", or "telephony" at http://search.ietf.org/ or click on the following queries:

Voice Over IP related:

Voice Over IP Gateway and Softswitch Vendors

3Com Corp., http://www.3com.com/
Audiocodes, http://www.audiocodes.com/
Cisco Systems Inc., http://www.cisco.com/
Lucent Technologies Inc., http://www.lucent.com/
Mitel Corporation, http://www.mitel.com/
Motorola Inc., http://www.mot.com/
NACT, http://www.nact.com
Netrix Corp., http://www.netrix.com/
Nortel Networks, http://www.nortelnetworks.com/index.html
RADvision Ltd., http://www.radvision.com/
Sonus Networks, Inc., http://www.sonusnetworks.com/
VegaStream, http://www.vegastream.com
VocalTec Inc., http://www.vocaltec.com/

Voice Over IP Service Providers

AT&T CallVantage: http://www.usa.att.com/callvantage/
Broadvox: http://www.broadvox.com/
Net2Phone: http://www.net2phone.com/
Packet8: http://www.packet8.com/
SIPPhone: http://www.SIPPhone.com/
VoiceGlo: http://www.voiceglo.com/
Vonage: http://www.vonage.com/