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Asterisk is a free and open source framework for building communications applications and is sponsored by Digium.
Asterisk is the #1 open source communications toolkit.
Asterisk powers IP PBX systems, VoIP gateways, conference servers, and is used by SMBs, enterprises, call centers, carriers and governments worldwide.
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Latest News
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Asterisk-16.0.0-rc1 Released!
Hello Everybody! Can you believe how quickly a year has passed? Time is drawing near to many exciting things – Astricon in October and with... -
3 Simple Steps to Prepare for AstriCon 2018
The time is now to finalize your plans to attend AstriCon User Conference and EXPO 2018. To help you in your planning, we’ve broken your tasks... -
Improved PJSIP Qualify Support Performance
One of the most difficult things in PJSIP is ensuring that the experience is the best it can be for not just people who configure their Asterisk from... -
Content Taking Shape for AstriCon 2018
With less than three months to go until everyone’s favorite Asterisk community event, the content is taking shape and we are getting excited... -
Using DEBUG_THREADS to find deadlocks.
Asterisk’s DEBUG_THREADS is a compile time tool that helps find deadlocks involving Asterisk locks. You enable DEBUG_THREADS in menuselect... -
Asterisk Test Suite: Building Better Tests
Let’s talk some more about testing, understanding the test framework for Asterisk, and building better tests. An exciting topic I know! In a... -
Asterisk Contact Center Survey – Results will be interesting!
If you have been using Asterisk for a few years, you will remember back in 2014 Loway (the company behind QueueMetrics) released the first Asterisk... -
Meet Chris Savinovich!
Earlier this year, the Asterisk team at Digium got a little bit bigger! For today’s blog post, I’m going to interview Chris Savinovich,... -
Enhanced Messaging in Asterisk 13 and 15
The next releases of Asterisk 13 and 15 extend MESSAGE support in chan_pjsip and add it to conference bridges. While Asterisk has supported the SIP... -
Indiana Phones and the Firmware of Intrigue: A Digium D-Series Phone Update
Maybe you fancy yourself a raider. Maybe you like to explore dark temples filled with doom. Maybe you wear a dirty fedora and you named the dog... -
Receiver Estimated Maximum Bitrate Support
For the last few months I, along with Ben Ford, have been working on improving the user experience side of the WebRTC support in Asterisk. When one... -
Crazy (Asterisk) Road Trip!
Have you ever had the opportunity to combine something you have always wanted to do with something you already love? Mark Spencer’s Great Idea... -
RTP: retransmission for video to combat packet loss
Introduction Packet loss can be an annoying problem when dealing with real time communication, especially when dealing with video. It’s very... -
It’s getting to be that time of year!
With the changing weather, some of us are thinking about summer with excitement, others about winter with trepidation. Regardless of which...
Learn how Asterisk 15 extends the power of Asterisk with enhanced multi-party video conferencing and collaboration capabilities.
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Last Updated On: August 21, 2016
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