Links

Trixbox links

• Largest Asterisk info site on the net
• Great site with lots of trixbox add-ons and tips
• Video tutorials on trixbox and Asterisk
• Australian trixbox and Asterisk wiki site
• Install guides for trixbox and A2billing
• Tutorial for Trixbox
• Elastix - a TrixBox fork
• X-lite 3.0 userguide
• Download X-lite
• CounterPath SIP Softphone Support (a forum)
• Comparison between X-lite en Eyebeam

Asterisk links

• Asterisk: The Future of Telephony by O'Reilly. (download) O’Reilly has licensed the book under the creative commons license and as such, you are free to download and distribute it.
• Large collection of Asterisk-related links.
• Het grote Asterisk topic op Tweakers
• Asterisk OpenH323 module
• H323 topic op Trixbox forum
• Telecom Tips - Building Your Own Conference Bridge.
• The Hitchhiker's Guide to Asterisk
• Connecting two (or more) Asterisk PBX's - the principles explained.

Changes between versions

• Changes between 1.0 and 1.2
• Changes between 1.2 and 1.4
• Detailed overview of differences between 1.4 and previous versions

Asterisk internal commands

• Goto()
• ChanIsAvail()
• Macro()
• Full list of Asterisk application commands

DUNDi links

• DUNDi.com
• Trixbox Configuration of DUNDi by voip-info.org
• Trixbox Configuration of DUNDi by thegoldfish.net (Previous version of Trixbox)
• Trixbox Configuration of DUNDi by Carla Schroder
• Trixbox Configuration of DUNDi by Leif Madsen, very useful presentation
• Trixbox Configuration of DUNDi by Tijmen van den Brink Connecting 3 Trixboxes together, not using DUNDi discovery, but neighbours' MAC-adresses. (source)
• Asterisk Configuration of DUNDi
• Asterisk function: dundilookup

• Thoughts about a Dundi Module
• General DUNDi peering information
• Asterisk DUNDi call routing

Bandwidth calculators

• Whitepaper about bandwidth and compression selection for your softphone
• VoIP bandwidth calculator
• Bandwidth by Asterisk and Iax2
• Asterisk bandwidth Iax2

IAX Links

• Description of IAX/IAX2
• IAX trunk-statistics
• IAX channels
• Asterisk channels
• Asterisk bandwidth Iax2
• IAX.conf tutorial

H.323 Links

General Information

• Understanding H.323 by Microsoft
• H.323 Tutorial and resources
• H.323 protocol overview
• High-level Overview

Papers

• H.323 call flow covering H.225, Q.931, H.245, RTP and RTCP protocols pdf
• H.323 White papers
• H.323 Information Site

Projects

• Ekiga (formerly GnomeMeeting)
• OpenH323 project
• xmeeting for MacOS X
• GNU Gatekeeper

Possible adapter-setup

• Freeswitch - An open source communications platform. FreeSWITCH™ is a library which ships with a small executable that loads the library, launches the core, and performs the various tasks that are defined by the modules. It can communicate with both H323 and IAX applications.

• ViDe Videoconferencing cookbook

Debugging

• Displaying info on OH323 calls

Conference call links

Video Switch links

• Presentation on Videoswitch in Asterisk - Quite a good overview of the possibilities of the VideoSwitch technology. e.g. Broadcast, conference with 1 speaker, etc.

app_conference links

• Asterisk-Users Meetme versus app_conference - a short reply of someone who compared MeetMe with app_conference.
• Short install how-to for app_conference

Codecs links

Audio codecs

• Information about the G.711 audio codec
• About audio codecs
• G723 and G729 codecs - Read README and place the correct .so file in /usr/lib/asterisk/modules

Video codecs

• Information about he H.263 video codec

Webcam Links

• webcams link