Welcome to the VOIP Wiki - a reference guide to all things VOIP.

This Wiki covers everything related to VOIP, software, hardware, VoIP service providers, reviews, configurations, standards, tips and tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony.

Your contributions are welcome, please read the How to add information to this wiki page and the Posting Guidelines before you post.

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NEWS

• 2013-02-05 - Incredible PBX 10 & Incredible Fax for Amazon EC2
• 2013-02-04 - UCexpo, What's up with SIP?
• 2013-02-04 - Voip-Info.org Announces the Top 3 Best Hosted PBX Providers of 2013

News Resources

• Software Releases - Check here for recent VoIP-related software releases.
• VoIP Services - Check here for news on Voip Services.
• VOIP Event Calendar - Check here for news on VOIP Events, Trade shows, Training and Conferences
• Older News - Check out older news articles here

Getting Started

• What is VOIP? The very basics.
• Free VOIP Publications: Magazines and Newsletters free to qualified subscribers about VOIP related products
• Training: Seminars, tutorials, on-line classes. Check here for recent.
• VOIP Consultants: Finding help.
• VOIP Service Providers - VOIP service providers.
• VOIP Server Monitoring - VOIP server monitoring providers.
• DID Service Providers - DID VOIP call origination service providers.
• VoIP Practical Guide - VoIP Resources for Your Home and Business
• How to start a VOIP Business - Guides and Resources to Start your own ITSP

Connecting Phones to VOIP - VoIP to PSTN, PSTN to VoIP

• IP Phones: VoIP phones both hardware and software
• Analog Telephone Adapters: VoIP analog telephone adapters ATA - see Cheapest ATAs and Service
  • See also VOIP Routers
  • See also Asterisk hardware home analog: includes some comparison of external ATA and PCI card
• Digital Telephone Adapters: VoIP Digital/TDM telephone adapters
• Dial Pulse to Touchtone DTMF Converters - connect that old rotary phone to DTMF VOIP equipment
• VOIP Paging and Intercom
• VOIP Payphones
• VOIP and TTY VOIP and hearing impaired TTY terminals
• VOIP Paging Equipment - paging with VOIP
• Hosted VoIP
• Free VoIP Networks - list of Free VoIP Providers
• Mobile VoIP
• Wireless VOIP: Cut the wires! Roam free with wireless VOIP
• SIP Trunking
• Long Distance Phone Service

Connecting VOIP Networks to the PSTN and Cellular Networks

• Cheapest ATAs and Service - For Calling PSTN Numbers, or receiving phone calls from PSTN Numbers
• ENUM - Translating E164 numbers to VoIP addresses
• Failover Switches - Automated or Manual Switch PSTN Interfaces on failure for redundancy
• FXS-FXO Converters - Convert an FXS interface to an FXO interface
• PSTN Gateways - VOIP to PSTN gateways (also known as: Media Gateways)
• Routing calls using a free international calling service - How to use two-step dialing to save on costs.
• VOIP GSM Gateways - VOIP to GSM gateways
• VOIP Termination and VOIP Origination
• GSM Termination - SIM Server

VoIP PBX and Servers

Popular choices - please do not alter this list, add new entries here

• Asterisk: Open Source PBX & Asterisk Appliances
• Free VoIP Networks - list of Free VoIP Providers
• CallWeaver: Vendor independent, cross-platform open source IP-PBX, originally derived from Asterisk.
• FreeSWITCH: Open source cross platform (*nix, Win, OSX) multiprotocol (SIP, IAX, Googletalk, Jabber, XMPP, WOOMERA/H.323, PRI/T1/E1) softswitch.
• Kamailio: Flexible and powerful open source GPL SIP ( RFC3261 ) server with integrated TLS (former OpenSer)
• Sip Express Router: High-performance, configurable, free SIP ( RFC3261 )
• sipXecs: SIPfoundry's sipXecs Project - The enterprise class SIP PBX for Linux (A-GPL) - Utilizes FreeSwitch, OpenFire and OpenACD
• Yate - open source softswitch/PBX, with E1/T1, ISDN, SS7, RBS, analogics, IAX, H.323, SIP, MGCP, Jingle (GoogleTalk), for Windows, Linux and BSD's
• VoIP providers customer reviews, pricing information, comparison tables, and more from VoipReview.org
• More: VOIP PBX and Servers, VoIP Hardware, Call Center Software, Virtual PBX

Voip Protocols

• IP Protocols COPS, ENUM, H.323, IAX, IMS, LTP, Megaco, MGCP, PINT, RTP, SCCP, SCTP, SDP, SIMPLE, SIP, STUN, T.37, T.38, TRIP, TURN
• ITU protocols SS7, ISUP
• OSP, PacketCable MRCP
• Encryption Protocols ZRTP

Markup

• Basic call routing and rules for UA's or VOIP servers CPL
• IVR Presentation and dialog management: VoiceXML, CallXML
• Call control / conferencing / call routing: CCXML
• IVR / Speech recognition definition: SRGS
• IVR / Speech synthesis definition: SSML
• IVR / prompting / recording / conferencing / DTMF / Voice: CallXML

Traditional Telephone Network

• Analog Telephone Information
• PBX features
• PSTN Interface Hardware
• RESPORG: Toll Free 800 Number Programming
• Telecom Dictionary
• Telco Engineering Information
• Telephone History

Related Topics to Business and VoIP

• Cloud Computing
• Hosted Collaboration
• Hosted Virtual Desktop
• Web Conferencing
• Web Hosting

VOIP Events and Conferences

• Training and Conferences - Check here for upcoming & recent Training and Conferences
• VOIP Event Calendar — List of upcoming VOIP related events, Conferences, Trade Shows, Training, etc.

Business Services

• Credit Card Merchant Services

Resources

• Twitter VoipUser Directory: Twitter VoipUser Directory
• VOIP Websites: Other VOIP websites on the Internet

Suggestions and Questions

• How to add information to this wiki
• Suggestions: Put your requests and suggestions here

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• Comments