Asterisk 1.4.20 Released

The development team has released Asterisk version 1.4.20.

This release contains a large number of bug fixes over the previous release. For a full list of changes, see the ChangeLog included in the release.

Asterisk 1.4.20 is available for immediate download from the Digium downloads site.

Thank you for your continued support of Asterisk!

John Todd Joins Digium as Open Source Community Director

I am excited to point out the John Todd has joined Digium as the new Open Source Community Director. John joins us with a vast amount of experience within the Asterisk community and beyond. Without further introduction, I will just point to John’s recent message to the development community in this mailing list post.

Also, see the Digium press release, as well.

More Work on Asterisk as a Softphone … Inside Firefox?!

Luigi Rizzo, a community developer for the Asterisk project has posted a message to the developers mailing list talking about some of the work that he and his students are working on. Previously, I pointed out how they had done work to allow you to use Asterisk as a softphone that supports video. Now, it sounds like they are taking this even further.

He talks about:

1) Merge console channel drivers in Asterisk.

Currently, there are three console channel drivers in Asterisk: chan_oss, chan_alsa, and chan_console. chan_console uses libportaudio to act as a cross platform channel driver. However, it does not have all of the features of chan_oss. Once chan_console has all of the features of the others, chan_console will be the single console channel driver.

2) Add support for multiple audio and video inputs for a single call.

This will allow switching between inputs within a call, as well as implementing interesting audio and video effects such as picture-in-picture or split screen during a call.

3) Make Asterisk run as a Firefox extension

This one completely blows my mind.

The goal here is to allow Asterisk to be embedded into Firefox so that the interface for making phone calls can be written within the web browser. It sounds like they already have this working, too! I can’t wait to see what this turns in to.

Admittedly, it seems like it could be overkill, but at the same time, Asterisk is an extremely powerful and flexible telephony platform. If the functionality of Asterisk was available as the backend for people that are capable of developing a great UI and user experience, the possibilities are quite interesting.

See the full mailing list post here.

Asterisk 1.4.20-rc3 and 1.6.0-beta9 Now Avaialble

The development team has released Asterisk versions 1.4.20-rc3 and 1.6.0-beta9.

These releases are intended to encourage community testing to improve the quality of the upcoming 1.4.20 and 1.6.0 releases. The testing process has proven extremely useful and we would like to thank everyone who has participated. Please help continue the effort. Any issues with test releases should be reported to or discussed on the asterisk-dev mailing list.

Both releases are available for download from the Digium downloads site.

Thank you for your continued support of Asterisk!

Asterisk Released

This release is related to my IAX2 performance improvements.


The development team has released Asterisk version

This release includes some IAX2 channel driver updates. Asterisk was released to address an IAX2 security vulnerability. Unfortunately, the changes to address the security issue had an unfortunate negative impact on IAX2 performance in Asterisk. These issues have been addressed and the related fixes are included in this release. The performance of IAX2 in Asterisk due to these changes should be far better than it was even before the changes were made for the security issue.

Anyone that uses IAX2 should use this release instead of

The release is available for download from the Digium downloads site.

Thank you for your continued support of Asterisk!

Asterisk 1.4.20-rc2 Released

The Asterisk development team has released Asterisk version 1.4.20-rc2.

This release is a release candidate for the upcoming official release of 1.4.20. It includes a fix for a SIP channel driver regression introduced in 1.4.20-rc1, among a number of other changes. For a full list of changes since the last release candidate, view the contents of the ChangeLog that is distributed with
the release.

The release candidate is available on the download site.

Please provide release candidate testing feedback to the asterisk-dev mailing list, or the issue tracker,

Thank you for your continued support of Asterisk!