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AstriDevCon July 2025

An AstriDevCon video conference was held on July 20, 2025 with about 15 attendees.  You can get a recap of the event at AstriDevCon July 2025 ...
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Asterisk 14Asterisk 15

CDR/CEL Processing – Climbing the Beanstalk

One of the most annoying tasks within Asterisk (or VoIP in general) is the task of CDR and event processing. Why is processing these so ...
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Uncategorized

Asterisk 15 Webinar

Slight interlude from your regularly scheduled programming. For any interested, Matthew Fredrickson, manager of the Asterisk project, will be giving a webinar on Tuesday December ...
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DocumentationPJSIP

PJSIP mis-configuration can cause loss of SIP registrations

Setting the "max_contacts" configuration option too low can cause loss of registrations. How that can happen and some recommendations are described.
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PJSIPSecurity

pjproject-2.7.1 qualified for use with Asterisk

This week, we’re pleased to say that we’ve updated the Asterisk 13, 15 and master branches’ bundled version of pjproject to 2.7.1. This release contains ...
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ARI

ARICPP: an ARI library for modern C++

As is well known, there are several ways to extend Asterisk features, but if you want to exploit the full power of its raw primitive ...
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Documentation

Using MALLOC_DEBUG to find memory misuse.

Asterisk’s MALLOC_DEBUG is a compile time tool that helps find some common memory usage problems such as memory corruption and memory leaks. The debug tool ...
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ReleasesSecurity

RTP Security Vulnerabilities: A Retrospective

[dropshadowbox align=”none” effect=”lifted-both” width=”auto” height=”” background_color=”#ffffff” border_width=”1″ border_color=”#dddddd” ]tl;dr: We fixed the vulnerabilities. If you’d like to read the conclusion of this admittedly long saga, ...
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Asterisk 15WebRTC

Asterisk 15: Multi-stream Media and SFU

In a previous post some of the upcoming changes made for Asterisk 15 have been discussed. Specifically, one of the items mentioned is the beginnings ...
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Asterisk 15PJSIP

Upcoming WebRTC Improvements in Asterisk 15

In my previous post I talked about what WebRTC support is like in Asterisk 14. Since Asterisk 15 is going to be released soon let’s ...
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Asterisk 14WebRTC

WebRTC and Asterisk 14

WebRTC has been in Asterisk since Asterisk 11 and over time has evolved just as the WebRTC specification itself has evolved. The WebRTC implementation we ...
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Asterisk 15WebRTC

Asterisk 15 Beta Released

It is with great pleasure I wish to inform the world of the first beta release of the new Asterisk 15 branch. It’s a very ...
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ArchitectureHow To

Asterisk Containers and Objects (ao2)

For those of you budding Asterisk developers out there, you may find yourself browsing the source code. All over, you’ll find function calls prefixed with ...
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ARI: Rested Developments

The Asterisk Rest Interface (ARI) over the last year received several enhancements that have been requested by the community: server side event filtering automatic context

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Asterisk-17.0.0-rc1 Released!

Greetings Everyone! Time flies when you are having fun and improving Asterisk; this past year has been no different. October and Astricon [1] are fast

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PJSIP Configuration Design

A comment that I see frequently when helping people with PJSIP is the lack of a general section (with global options) and how this causes

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